Home / 19,645.32-29,489.76-9,781.95

Finding the Fourth Proportional to 19,645.32, 29,489.76 and 9,781.95

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Solution

The fourth proportional to 19,645.32, 29,489.76 and 9,781.95 is: 14,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.32 : 29,489.76 = 9,781.95 : x
  2. Step 2: Convert to fraction form
    19,645.32/29,489.76 = 9,781.95/x
  3. Step 3: Cross multiply
    19,645.32x = 29,489.76 × 9,781.95
  4. Step 4: Simplify right side
    19,645.32x = 288,467,357.83
  5. Step 5: Solve for x
    x = 288,467,357.83/19,645.32
  6. Step 6: Final answer
    x = 14,683.77

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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.