Home / 29,405.12-44,120.72-11,909.12

Finding the Fourth Proportional to 29,405.12, 44,120.72 and 11,909.12

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Solution

The fourth proportional to 29,405.12, 44,120.72 and 11,909.12 is: 17,868.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,405.12 : 44,120.72 = 11,909.12 : x
  2. Step 2: Convert to fraction form
    29,405.12/44,120.72 = 11,909.12/x
  3. Step 3: Cross multiply
    29,405.12x = 44,120.72 × 11,909.12
  4. Step 4: Simplify right side
    29,405.12x = 525,438,948.97
  5. Step 5: Solve for x
    x = 525,438,948.97/29,405.12
  6. Step 6: Final answer
    x = 17,868.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.