Home / 39,234.98-54,145.32-21,331.19

Finding the Fourth Proportional to 39,234.98, 54,145.32 and 21,331.19

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Solution

The fourth proportional to 39,234.98, 54,145.32 and 21,331.19 is: 29,437.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,234.98 : 54,145.32 = 21,331.19 : x
  2. Step 2: Convert to fraction form
    39,234.98/54,145.32 = 21,331.19/x
  3. Step 3: Cross multiply
    39,234.98x = 54,145.32 × 21,331.19
  4. Step 4: Simplify right side
    39,234.98x = 1,154,984,108.53
  5. Step 5: Solve for x
    x = 1,154,984,108.53/39,234.98
  6. Step 6: Final answer
    x = 29,437.61

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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.