Home / 38,288.22-52,838.20-21,520.86

Finding the Fourth Proportional to 38,288.22, 52,838.20 and 21,520.86

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Solution

The fourth proportional to 38,288.22, 52,838.20 and 21,520.86 is: 29,699.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288.22 : 52,838.20 = 21,520.86 : x
  2. Step 2: Convert to fraction form
    38,288.22/52,838.20 = 21,520.86/x
  3. Step 3: Cross multiply
    38,288.22x = 52,838.20 × 21,520.86
  4. Step 4: Simplify right side
    38,288.22x = 1,137,123,504.85
  5. Step 5: Solve for x
    x = 1,137,123,504.85/38,288.22
  6. Step 6: Final answer
    x = 29,699.04

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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.