Home / 39,122.19-58,686.56-12,471.96

Finding the Fourth Proportional to 39,122.19, 58,686.56 and 12,471.96

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Solution

The fourth proportional to 39,122.19, 58,686.56 and 12,471.96 is: 18,708.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,122.19 : 58,686.56 = 12,471.96 : x
  2. Step 2: Convert to fraction form
    39,122.19/58,686.56 = 12,471.96/x
  3. Step 3: Cross multiply
    39,122.19x = 58,686.56 × 12,471.96
  4. Step 4: Simplify right side
    39,122.19x = 731,936,428.86
  5. Step 5: Solve for x
    x = 731,936,428.86/39,122.19
  6. Step 6: Final answer
    x = 18,708.99

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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.