Home / 57,631.53-86,447.29-15,511.70

Finding the Fourth Proportional to 57,631.53, 86,447.29 and 15,511.70

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Solution

The fourth proportional to 57,631.53, 86,447.29 and 15,511.70 is: 23,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,631.53 : 86,447.29 = 15,511.70 : x
  2. Step 2: Convert to fraction form
    57,631.53/86,447.29 = 15,511.70/x
  3. Step 3: Cross multiply
    57,631.53x = 86,447.29 × 15,511.70
  4. Step 4: Simplify right side
    57,631.53x = 1,340,943,996.06
  5. Step 5: Solve for x
    x = 1,340,943,996.06/57,631.53
  6. Step 6: Final answer
    x = 23,267.54

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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.