Home / 38,149.92-52,650-21,159.50

Finding the Fourth Proportional to 38,149.92, 52,650 and 21,159.50

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Solution

The fourth proportional to 38,149.92, 52,650 and 21,159.50 is: 29,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,149.92 : 52,650 = 21,159.50 : x
  2. Step 2: Convert to fraction form
    38,149.92/52,650 = 21,159.50/x
  3. Step 3: Cross multiply
    38,149.92x = 52,650 × 21,159.50
  4. Step 4: Simplify right side
    38,149.92x = 1,114,047,411.75
  5. Step 5: Solve for x
    x = 1,114,047,411.75/38,149.92
  6. Step 6: Final answer
    x = 29,201.83

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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.