Home / 48,278.10-72,422.15-13,217.75

Finding the Fourth Proportional to 48,278.10, 72,422.15 and 13,217.75

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Solution

The fourth proportional to 48,278.10, 72,422.15 and 13,217.75 is: 19,827.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,278.10 : 72,422.15 = 13,217.75 : x
  2. Step 2: Convert to fraction form
    48,278.10/72,422.15 = 13,217.75/x
  3. Step 3: Cross multiply
    48,278.10x = 72,422.15 × 13,217.75
  4. Step 4: Simplify right side
    48,278.10x = 957,257,873.16
  5. Step 5: Solve for x
    x = 957,257,873.16/48,278.10
  6. Step 6: Final answer
    x = 19,827.99

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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.