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Finding the Fourth Proportional to 48,422.88, 72,647.28 and 18,849.24

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Solution

The fourth proportional to 48,422.88, 72,647.28 and 18,849.24 is: 28,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,422.88 : 72,647.28 = 18,849.24 : x
  2. Step 2: Convert to fraction form
    48,422.88/72,647.28 = 18,849.24/x
  3. Step 3: Cross multiply
    48,422.88x = 72,647.28 × 18,849.24
  4. Step 4: Simplify right side
    48,422.88x = 1,369,346,016.07
  5. Step 5: Solve for x
    x = 1,369,346,016.07/48,422.88
  6. Step 6: Final answer
    x = 28,278.90

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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.