Home / 19,938.88-29,907.10-8,251.80

Finding the Fourth Proportional to 19,938.88, 29,907.10 and 8,251.80

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Solution

The fourth proportional to 19,938.88, 29,907.10 and 8,251.80 is: 12,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.88 : 29,907.10 = 8,251.80 : x
  2. Step 2: Convert to fraction form
    19,938.88/29,907.10 = 8,251.80/x
  3. Step 3: Cross multiply
    19,938.88x = 29,907.10 × 8,251.80
  4. Step 4: Simplify right side
    19,938.88x = 246,787,407.78
  5. Step 5: Solve for x
    x = 246,787,407.78/19,938.88
  6. Step 6: Final answer
    x = 12,377.20

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1.5x scale

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.