Home / 38,976.28-58,465.14-12,680.92

Finding the Fourth Proportional to 38,976.28, 58,465.14 and 12,680.92

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Solution

The fourth proportional to 38,976.28, 58,465.14 and 12,680.92 is: 19,021.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,976.28 : 58,465.14 = 12,680.92 : x
  2. Step 2: Convert to fraction form
    38,976.28/58,465.14 = 12,680.92/x
  3. Step 3: Cross multiply
    38,976.28x = 58,465.14 × 12,680.92
  4. Step 4: Simplify right side
    38,976.28x = 741,391,763.13
  5. Step 5: Solve for x
    x = 741,391,763.13/38,976.28
  6. Step 6: Final answer
    x = 19,021.61

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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.