Home / 39,565.05-54,600.42-21,659.76

Finding the Fourth Proportional to 39,565.05, 54,600.42 and 21,659.76

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Solution

The fourth proportional to 39,565.05, 54,600.42 and 21,659.76 is: 29,890.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,565.05 : 54,600.42 = 21,659.76 : x
  2. Step 2: Convert to fraction form
    39,565.05/54,600.42 = 21,659.76/x
  3. Step 3: Cross multiply
    39,565.05x = 54,600.42 × 21,659.76
  4. Step 4: Simplify right side
    39,565.05x = 1,182,631,993.10
  5. Step 5: Solve for x
    x = 1,182,631,993.10/39,565.05
  6. Step 6: Final answer
    x = 29,890.83

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1.5x scale

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.