Home / 20,004.08-30,006.20-11,124.88

Finding the Fourth Proportional to 20,004.08, 30,006.20 and 11,124.88

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Solution

The fourth proportional to 20,004.08, 30,006.20 and 11,124.88 is: 16,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.08 : 30,006.20 = 11,124.88 : x
  2. Step 2: Convert to fraction form
    20,004.08/30,006.20 = 11,124.88/x
  3. Step 3: Cross multiply
    20,004.08x = 30,006.20 × 11,124.88
  4. Step 4: Simplify right side
    20,004.08x = 333,815,374.26
  5. Step 5: Solve for x
    x = 333,815,374.26/20,004.08
  6. Step 6: Final answer
    x = 16,687.36

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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.