Home / 38,684.59-58,007.75-12,385.91

Finding the Fourth Proportional to 38,684.59, 58,007.75 and 12,385.91

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Solution

The fourth proportional to 38,684.59, 58,007.75 and 12,385.91 is: 18,572.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,684.59 : 58,007.75 = 12,385.91 : x
  2. Step 2: Convert to fraction form
    38,684.59/58,007.75 = 12,385.91/x
  3. Step 3: Cross multiply
    38,684.59x = 58,007.75 × 12,385.91
  4. Step 4: Simplify right side
    38,684.59x = 718,478,853.89
  5. Step 5: Solve for x
    x = 718,478,853.89/38,684.59
  6. Step 6: Final answer
    x = 18,572.74

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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.