Home / 19,909.80-29,851.56-9,515.88

Finding the Fourth Proportional to 19,909.80, 29,851.56 and 9,515.88

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Solution

The fourth proportional to 19,909.80, 29,851.56 and 9,515.88 is: 14,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.80 : 29,851.56 = 9,515.88 : x
  2. Step 2: Convert to fraction form
    19,909.80/29,851.56 = 9,515.88/x
  3. Step 3: Cross multiply
    19,909.80x = 29,851.56 × 9,515.88
  4. Step 4: Simplify right side
    19,909.80x = 284,063,862.77
  5. Step 5: Solve for x
    x = 284,063,862.77/19,909.80
  6. Step 6: Final answer
    x = 14,267.54

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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.