Home / 31,545.79-43,531.76-17,205.28

Finding the Fourth Proportional to 31,545.79, 43,531.76 and 17,205.28

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Solution

The fourth proportional to 31,545.79, 43,531.76 and 17,205.28 is: 23,742.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,545.79 : 43,531.76 = 17,205.28 : x
  2. Step 2: Convert to fraction form
    31,545.79/43,531.76 = 17,205.28/x
  3. Step 3: Cross multiply
    31,545.79x = 43,531.76 × 17,205.28
  4. Step 4: Simplify right side
    31,545.79x = 748,976,053.88
  5. Step 5: Solve for x
    x = 748,976,053.88/31,545.79
  6. Step 6: Final answer
    x = 23,742.51

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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.