Home / 39,565.21-54,600.95-21,660.16

Finding the Fourth Proportional to 39,565.21, 54,600.95 and 21,660.16

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Solution

The fourth proportional to 39,565.21, 54,600.95 and 21,660.16 is: 29,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,565.21 : 54,600.95 = 21,660.16 : x
  2. Step 2: Convert to fraction form
    39,565.21/54,600.95 = 21,660.16/x
  3. Step 3: Cross multiply
    39,565.21x = 54,600.95 × 21,660.16
  4. Step 4: Simplify right side
    39,565.21x = 1,182,665,313.15
  5. Step 5: Solve for x
    x = 1,182,665,313.15/39,565.21
  6. Step 6: Final answer
    x = 29,891.55

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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.