Home / 47,449.29-71,172.55-12,388.95

Finding the Fourth Proportional to 47,449.29, 71,172.55 and 12,388.95

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Solution

The fourth proportional to 47,449.29, 71,172.55 and 12,388.95 is: 18,583.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,449.29 : 71,172.55 = 12,388.95 : x
  2. Step 2: Convert to fraction form
    47,449.29/71,172.55 = 12,388.95/x
  3. Step 3: Cross multiply
    47,449.29x = 71,172.55 × 12,388.95
  4. Step 4: Simplify right side
    47,449.29x = 881,753,163.32
  5. Step 5: Solve for x
    x = 881,753,163.32/47,449.29
  6. Step 6: Final answer
    x = 18,583.06

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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.