Home / 39,545.74-54,573.06-21,640.74

Finding the Fourth Proportional to 39,545.74, 54,573.06 and 21,640.74

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Solution

The fourth proportional to 39,545.74, 54,573.06 and 21,640.74 is: 29,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,545.74 : 54,573.06 = 21,640.74 : x
  2. Step 2: Convert to fraction form
    39,545.74/54,573.06 = 21,640.74/x
  3. Step 3: Cross multiply
    39,545.74x = 54,573.06 × 21,640.74
  4. Step 4: Simplify right side
    39,545.74x = 1,181,001,402.46
  5. Step 5: Solve for x
    x = 1,181,001,402.46/39,545.74
  6. Step 6: Final answer
    x = 29,864.19

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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.