Home / 22,612.62-31,203.54-12,540.18

Finding the Fourth Proportional to 22,612.62, 31,203.54 and 12,540.18

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Solution

The fourth proportional to 22,612.62, 31,203.54 and 12,540.18 is: 17,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.62 : 31,203.54 = 12,540.18 : x
  2. Step 2: Convert to fraction form
    22,612.62/31,203.54 = 12,540.18/x
  3. Step 3: Cross multiply
    22,612.62x = 31,203.54 × 12,540.18
  4. Step 4: Simplify right side
    22,612.62x = 391,298,008.24
  5. Step 5: Solve for x
    x = 391,298,008.24/22,612.62
  6. Step 6: Final answer
    x = 17,304.41

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Half scale
Find fourth proportional to 45,225.24, 62,407.08 and 25,080.36
Double scale
Find fourth proportional to 22,613.62, 31,204.92 and 12,541.18
Similar ratio
Find fourth proportional to 33,918.93, 46,805.31 and 18,810.27
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.