Home / 31,337.47-43,221.27-19,407.43

Finding the Fourth Proportional to 31,337.47, 43,221.27 and 19,407.43

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Solution

The fourth proportional to 31,337.47, 43,221.27 and 19,407.43 is: 26,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,337.47 : 43,221.27 = 19,407.43 : x
  2. Step 2: Convert to fraction form
    31,337.47/43,221.27 = 19,407.43/x
  3. Step 3: Cross multiply
    31,337.47x = 43,221.27 × 19,407.43
  4. Step 4: Simplify right side
    31,337.47x = 838,813,772.04
  5. Step 5: Solve for x
    x = 838,813,772.04/31,337.47
  6. Step 6: Final answer
    x = 26,767.12

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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.