Home / 15,447.40-23,172.88-5,591.32

Finding the Fourth Proportional to 15,447.40, 23,172.88 and 5,591.32

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Solution

The fourth proportional to 15,447.40, 23,172.88 and 5,591.32 is: 8,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.40 : 23,172.88 = 5,591.32 : x
  2. Step 2: Convert to fraction form
    15,447.40/23,172.88 = 5,591.32/x
  3. Step 3: Cross multiply
    15,447.40x = 23,172.88 × 5,591.32
  4. Step 4: Simplify right side
    15,447.40x = 129,566,987.40
  5. Step 5: Solve for x
    x = 129,566,987.40/15,447.40
  6. Step 6: Final answer
    x = 8,387.62

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