Home / 22,481.43-31,036.80-13,531.13

Finding the Fourth Proportional to 22,481.43, 31,036.80 and 13,531.13

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Solution

The fourth proportional to 22,481.43, 31,036.80 and 13,531.13 is: 18,680.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,481.43 : 31,036.80 = 13,531.13 : x
  2. Step 2: Convert to fraction form
    22,481.43/31,036.80 = 13,531.13/x
  3. Step 3: Cross multiply
    22,481.43x = 31,036.80 × 13,531.13
  4. Step 4: Simplify right side
    22,481.43x = 419,962,820.40
  5. Step 5: Solve for x
    x = 419,962,820.40/22,481.43
  6. Step 6: Final answer
    x = 18,680.43

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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.