Home / 20,110.61-30,165.92-13,779.24

Finding the Fourth Proportional to 20,110.61, 30,165.92 and 13,779.24

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Solution

The fourth proportional to 20,110.61, 30,165.92 and 13,779.24 is: 20,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.61 : 30,165.92 = 13,779.24 : x
  2. Step 2: Convert to fraction form
    20,110.61/30,165.92 = 13,779.24/x
  3. Step 3: Cross multiply
    20,110.61x = 30,165.92 × 13,779.24
  4. Step 4: Simplify right side
    20,110.61x = 415,663,451.50
  5. Step 5: Solve for x
    x = 415,663,451.50/20,110.61
  6. Step 6: Final answer
    x = 20,668.86

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Similar ratio
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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.