Home / 20,488.07-30,732.01-6,449.29

Finding the Fourth Proportional to 20,488.07, 30,732.01 and 6,449.29

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Solution

The fourth proportional to 20,488.07, 30,732.01 and 6,449.29 is: 9,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.07 : 30,732.01 = 6,449.29 : x
  2. Step 2: Convert to fraction form
    20,488.07/30,732.01 = 6,449.29/x
  3. Step 3: Cross multiply
    20,488.07x = 30,732.01 × 6,449.29
  4. Step 4: Simplify right side
    20,488.07x = 198,199,551.82
  5. Step 5: Solve for x
    x = 198,199,551.82/20,488.07
  6. Step 6: Final answer
    x = 9,673.90

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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.