Home / 38,711.40-58,091.19-20,934.68

Finding the Fourth Proportional to 38,711.40, 58,091.19 and 20,934.68

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Solution

The fourth proportional to 38,711.40, 58,091.19 and 20,934.68 is: 31,415.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,711.40 : 58,091.19 = 20,934.68 : x
  2. Step 2: Convert to fraction form
    38,711.40/58,091.19 = 20,934.68/x
  3. Step 3: Cross multiply
    38,711.40x = 58,091.19 × 20,934.68
  4. Step 4: Simplify right side
    38,711.40x = 1,216,120,183.01
  5. Step 5: Solve for x
    x = 1,216,120,183.01/38,711.40
  6. Step 6: Final answer
    x = 31,415.04

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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.