Home / 39,170.91-58,755.69-12,516.70

Finding the Fourth Proportional to 39,170.91, 58,755.69 and 12,516.70

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Solution

The fourth proportional to 39,170.91, 58,755.69 and 12,516.70 is: 18,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,170.91 : 58,755.69 = 12,516.70 : x
  2. Step 2: Convert to fraction form
    39,170.91/58,755.69 = 12,516.70/x
  3. Step 3: Cross multiply
    39,170.91x = 58,755.69 × 12,516.70
  4. Step 4: Simplify right side
    39,170.91x = 735,427,491.15
  5. Step 5: Solve for x
    x = 735,427,491.15/39,170.91
  6. Step 6: Final answer
    x = 18,774.84

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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.