Home / 39,377.85-54,340.71-21,472.47

Finding the Fourth Proportional to 39,377.85, 54,340.71 and 21,472.47

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Solution

The fourth proportional to 39,377.85, 54,340.71 and 21,472.47 is: 29,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,377.85 : 54,340.71 = 21,472.47 : x
  2. Step 2: Convert to fraction form
    39,377.85/54,340.71 = 21,472.47/x
  3. Step 3: Cross multiply
    39,377.85x = 54,340.71 × 21,472.47
  4. Step 4: Simplify right side
    39,377.85x = 1,166,829,265.25
  5. Step 5: Solve for x
    x = 1,166,829,265.25/39,377.85
  6. Step 6: Final answer
    x = 29,631.61

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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.