Home / 22,782.51-31,442.30-12,714.45

Finding the Fourth Proportional to 22,782.51, 31,442.30 and 12,714.45

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Solution

The fourth proportional to 22,782.51, 31,442.30 and 12,714.45 is: 17,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,782.51 : 31,442.30 = 12,714.45 : x
  2. Step 2: Convert to fraction form
    22,782.51/31,442.30 = 12,714.45/x
  3. Step 3: Cross multiply
    22,782.51x = 31,442.30 × 12,714.45
  4. Step 4: Simplify right side
    22,782.51x = 399,771,487.66
  5. Step 5: Solve for x
    x = 399,771,487.66/22,782.51
  6. Step 6: Final answer
    x = 17,547.30

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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.