Home / 19,909.22-29,844.80-7,425.87

Finding the Fourth Proportional to 19,909.22, 29,844.80 and 7,425.87

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Solution

The fourth proportional to 19,909.22, 29,844.80 and 7,425.87 is: 11,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.22 : 29,844.80 = 7,425.87 : x
  2. Step 2: Convert to fraction form
    19,909.22/29,844.80 = 7,425.87/x
  3. Step 3: Cross multiply
    19,909.22x = 29,844.80 × 7,425.87
  4. Step 4: Simplify right side
    19,909.22x = 221,623,483.78
  5. Step 5: Solve for x
    x = 221,623,483.78/19,909.22
  6. Step 6: Final answer
    x = 11,131.70

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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.