Home / 39,545.39-54,572.63-21,640.53

Finding the Fourth Proportional to 39,545.39, 54,572.63 and 21,640.53

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Solution

The fourth proportional to 39,545.39, 54,572.63 and 21,640.53 is: 29,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,545.39 : 54,572.63 = 21,640.53 : x
  2. Step 2: Convert to fraction form
    39,545.39/54,572.63 = 21,640.53/x
  3. Step 3: Cross multiply
    39,545.39x = 54,572.63 × 21,640.53
  4. Step 4: Simplify right side
    39,545.39x = 1,180,980,528.49
  5. Step 5: Solve for x
    x = 1,180,980,528.49/39,545.39
  6. Step 6: Final answer
    x = 29,863.93

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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.