Home / 39,565.75-54,600.72-21,660.70

Finding the Fourth Proportional to 39,565.75, 54,600.72 and 21,660.70

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Solution

The fourth proportional to 39,565.75, 54,600.72 and 21,660.70 is: 29,891.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,565.75 : 54,600.72 = 21,660.70 : x
  2. Step 2: Convert to fraction form
    39,565.75/54,600.72 = 21,660.70/x
  3. Step 3: Cross multiply
    39,565.75x = 54,600.72 × 21,660.70
  4. Step 4: Simplify right side
    39,565.75x = 1,182,689,815.70
  5. Step 5: Solve for x
    x = 1,182,689,815.70/39,565.75
  6. Step 6: Final answer
    x = 29,891.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.