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Finding the Fourth Proportional to 15,322.31, 22,981.73 and 5,325.14

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Solution

The fourth proportional to 15,322.31, 22,981.73 and 5,325.14 is: 7,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.31 : 22,981.73 = 5,325.14 : x
  2. Step 2: Convert to fraction form
    15,322.31/22,981.73 = 5,325.14/x
  3. Step 3: Cross multiply
    15,322.31x = 22,981.73 × 5,325.14
  4. Step 4: Simplify right side
    15,322.31x = 122,380,960.52
  5. Step 5: Solve for x
    x = 122,380,960.52/15,322.31
  6. Step 6: Final answer
    x = 7,987.11

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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.