Home / 39,545.52-54,572.81-21,640.53

Finding the Fourth Proportional to 39,545.52, 54,572.81 and 21,640.53

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Solution

The fourth proportional to 39,545.52, 54,572.81 and 21,640.53 is: 29,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,545.52 : 54,572.81 = 21,640.53 : x
  2. Step 2: Convert to fraction form
    39,545.52/54,572.81 = 21,640.53/x
  3. Step 3: Cross multiply
    39,545.52x = 54,572.81 × 21,640.53
  4. Step 4: Simplify right side
    39,545.52x = 1,180,984,531.99
  5. Step 5: Solve for x
    x = 1,180,984,531.99/39,545.52
  6. Step 6: Final answer
    x = 29,863.93

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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.