Home / 48,282.10-72,428.15-13,221.75

Finding the Fourth Proportional to 48,282.10, 72,428.15 and 13,221.75

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Solution

The fourth proportional to 48,282.10, 72,428.15 and 13,221.75 is: 19,833.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,282.10 : 72,428.15 = 13,221.75 : x
  2. Step 2: Convert to fraction form
    48,282.10/72,428.15 = 13,221.75/x
  3. Step 3: Cross multiply
    48,282.10x = 72,428.15 × 13,221.75
  4. Step 4: Simplify right side
    48,282.10x = 957,626,892.26
  5. Step 5: Solve for x
    x = 957,626,892.26/48,282.10
  6. Step 6: Final answer
    x = 19,833.99

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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.