Home / 20,031.60-30,006.40-11,248.08

Finding the Fourth Proportional to 20,031.60, 30,006.40 and 11,248.08

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Solution

The fourth proportional to 20,031.60, 30,006.40 and 11,248.08 is: 16,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.60 : 30,006.40 = 11,248.08 : x
  2. Step 2: Convert to fraction form
    20,031.60/30,006.40 = 11,248.08/x
  3. Step 3: Cross multiply
    20,031.60x = 30,006.40 × 11,248.08
  4. Step 4: Simplify right side
    20,031.60x = 337,514,387.71
  5. Step 5: Solve for x
    x = 337,514,387.71/20,031.60
  6. Step 6: Final answer
    x = 16,849.10

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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.