Home / 22,712.47-31,343.62-12,641.33

Finding the Fourth Proportional to 22,712.47, 31,343.62 and 12,641.33

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Solution

The fourth proportional to 22,712.47, 31,343.62 and 12,641.33 is: 17,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.47 : 31,343.62 = 12,641.33 : x
  2. Step 2: Convert to fraction form
    22,712.47/31,343.62 = 12,641.33/x
  3. Step 3: Cross multiply
    22,712.47x = 31,343.62 × 12,641.33
  4. Step 4: Simplify right side
    22,712.47x = 396,225,043.81
  5. Step 5: Solve for x
    x = 396,225,043.81/22,712.47
  6. Step 6: Final answer
    x = 17,445.26

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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.