Home / 38,722.59-58,078.42-12,423.92

Finding the Fourth Proportional to 38,722.59, 58,078.42 and 12,423.92

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Solution

The fourth proportional to 38,722.59, 58,078.42 and 12,423.92 is: 18,634.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,722.59 : 58,078.42 = 12,423.92 : x
  2. Step 2: Convert to fraction form
    38,722.59/58,078.42 = 12,423.92/x
  3. Step 3: Cross multiply
    38,722.59x = 58,078.42 × 12,423.92
  4. Step 4: Simplify right side
    38,722.59x = 721,561,322.35
  5. Step 5: Solve for x
    x = 721,561,322.35/38,722.59
  6. Step 6: Final answer
    x = 18,634.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.