Home / 39,234.53-54,144.11-21,329.15

Finding the Fourth Proportional to 39,234.53, 54,144.11 and 21,329.15

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Solution

The fourth proportional to 39,234.53, 54,144.11 and 21,329.15 is: 29,434.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,234.53 : 54,144.11 = 21,329.15 : x
  2. Step 2: Convert to fraction form
    39,234.53/54,144.11 = 21,329.15/x
  3. Step 3: Cross multiply
    39,234.53x = 54,144.11 × 21,329.15
  4. Step 4: Simplify right side
    39,234.53x = 1,154,847,626.41
  5. Step 5: Solve for x
    x = 1,154,847,626.41/39,234.53
  6. Step 6: Final answer
    x = 29,434.47

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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.