Home / 39,577.20-54,617.84-21,672.96

Finding the Fourth Proportional to 39,577.20, 54,617.84 and 21,672.96

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Solution

The fourth proportional to 39,577.20, 54,617.84 and 21,672.96 is: 29,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,577.20 : 54,617.84 = 21,672.96 : x
  2. Step 2: Convert to fraction form
    39,577.20/54,617.84 = 21,672.96/x
  3. Step 3: Cross multiply
    39,577.20x = 54,617.84 × 21,672.96
  4. Step 4: Simplify right side
    39,577.20x = 1,183,730,261.61
  5. Step 5: Solve for x
    x = 1,183,730,261.61/39,577.20
  6. Step 6: Final answer
    x = 29,909.40

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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.