Home / 38,234.85-52,764.71-21,240.18

Finding the Fourth Proportional to 38,234.85, 52,764.71 and 21,240.18

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Solution

The fourth proportional to 38,234.85, 52,764.71 and 21,240.18 is: 29,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,234.85 : 52,764.71 = 21,240.18 : x
  2. Step 2: Convert to fraction form
    38,234.85/52,764.71 = 21,240.18/x
  3. Step 3: Cross multiply
    38,234.85x = 52,764.71 × 21,240.18
  4. Step 4: Simplify right side
    38,234.85x = 1,120,731,938.05
  5. Step 5: Solve for x
    x = 1,120,731,938.05/38,234.85
  6. Step 6: Final answer
    x = 29,311.79

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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.