Home / 29,354.40-40,507.20-16,778.88

Finding the Fourth Proportional to 29,354.40, 40,507.20 and 16,778.88

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Solution

The fourth proportional to 29,354.40, 40,507.20 and 16,778.88 is: 23,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,354.40 : 40,507.20 = 16,778.88 : x
  2. Step 2: Convert to fraction form
    29,354.40/40,507.20 = 16,778.88/x
  3. Step 3: Cross multiply
    29,354.40x = 40,507.20 × 16,778.88
  4. Step 4: Simplify right side
    29,354.40x = 679,665,447.94
  5. Step 5: Solve for x
    x = 679,665,447.94/29,354.40
  6. Step 6: Final answer
    x = 23,153.78

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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.