Home / 39,209.92-58,766.72-18,121.42

Finding the Fourth Proportional to 39,209.92, 58,766.72 and 18,121.42

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Solution

The fourth proportional to 39,209.92, 58,766.72 and 18,121.42 is: 27,159.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,209.92 : 58,766.72 = 18,121.42 : x
  2. Step 2: Convert to fraction form
    39,209.92/58,766.72 = 18,121.42/x
  3. Step 3: Cross multiply
    39,209.92x = 58,766.72 × 18,121.42
  4. Step 4: Simplify right side
    39,209.92x = 1,064,936,397.99
  5. Step 5: Solve for x
    x = 1,064,936,397.99/39,209.92
  6. Step 6: Final answer
    x = 27,159.87

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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.