Home / 39,120.54-58,691.76-12,843.75

Finding the Fourth Proportional to 39,120.54, 58,691.76 and 12,843.75

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Solution

The fourth proportional to 39,120.54, 58,691.76 and 12,843.75 is: 19,269.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120.54 : 58,691.76 = 12,843.75 : x
  2. Step 2: Convert to fraction form
    39,120.54/58,691.76 = 12,843.75/x
  3. Step 3: Cross multiply
    39,120.54x = 58,691.76 × 12,843.75
  4. Step 4: Simplify right side
    39,120.54x = 753,822,292.50
  5. Step 5: Solve for x
    x = 753,822,292.50/39,120.54
  6. Step 6: Final answer
    x = 19,269.22

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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.