Home / 19,929.80-29,869.10-8,251.08

Finding the Fourth Proportional to 19,929.80, 29,869.10 and 8,251.08

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Solution

The fourth proportional to 19,929.80, 29,869.10 and 8,251.08 is: 12,366.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.80 : 29,869.10 = 8,251.08 : x
  2. Step 2: Convert to fraction form
    19,929.80/29,869.10 = 8,251.08/x
  3. Step 3: Cross multiply
    19,929.80x = 29,869.10 × 8,251.08
  4. Step 4: Simplify right side
    19,929.80x = 246,452,333.63
  5. Step 5: Solve for x
    x = 246,452,333.63/19,929.80
  6. Step 6: Final answer
    x = 12,366.02

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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.