Home / 39,565.72-54,600.60-21,660.72

Finding the Fourth Proportional to 39,565.72, 54,600.60 and 21,660.72

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Solution

The fourth proportional to 39,565.72, 54,600.60 and 21,660.72 is: 29,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,565.72 : 54,600.60 = 21,660.72 : x
  2. Step 2: Convert to fraction form
    39,565.72/54,600.60 = 21,660.72/x
  3. Step 3: Cross multiply
    39,565.72x = 54,600.60 × 21,660.72
  4. Step 4: Simplify right side
    39,565.72x = 1,182,688,308.43
  5. Step 5: Solve for x
    x = 1,182,688,308.43/39,565.72
  6. Step 6: Final answer
    x = 29,891.74

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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.