Home / 38,918.28-58,378.14-12,622.92

Finding the Fourth Proportional to 38,918.28, 58,378.14 and 12,622.92

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Solution

The fourth proportional to 38,918.28, 58,378.14 and 12,622.92 is: 18,934.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,918.28 : 58,378.14 = 12,622.92 : x
  2. Step 2: Convert to fraction form
    38,918.28/58,378.14 = 12,622.92/x
  3. Step 3: Cross multiply
    38,918.28x = 58,378.14 × 12,622.92
  4. Step 4: Simplify right side
    38,918.28x = 736,902,590.97
  5. Step 5: Solve for x
    x = 736,902,590.97/38,918.28
  6. Step 6: Final answer
    x = 18,934.61

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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.