Home / 39,545.59-54,571.58-21,639.39

Finding the Fourth Proportional to 39,545.59, 54,571.58 and 21,639.39

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Solution

The fourth proportional to 39,545.59, 54,571.58 and 21,639.39 is: 29,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,545.59 : 54,571.58 = 21,639.39 : x
  2. Step 2: Convert to fraction form
    39,545.59/54,571.58 = 21,639.39/x
  3. Step 3: Cross multiply
    39,545.59x = 54,571.58 × 21,639.39
  4. Step 4: Simplify right side
    39,545.59x = 1,180,895,702.54
  5. Step 5: Solve for x
    x = 1,180,895,702.54/39,545.59
  6. Step 6: Final answer
    x = 29,861.63

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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.