Home / 20,552.59-30,779.20-11,760.85

Finding the Fourth Proportional to 20,552.59, 30,779.20 and 11,760.85

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Solution

The fourth proportional to 20,552.59, 30,779.20 and 11,760.85 is: 17,612.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.59 : 30,779.20 = 11,760.85 : x
  2. Step 2: Convert to fraction form
    20,552.59/30,779.20 = 11,760.85/x
  3. Step 3: Cross multiply
    20,552.59x = 30,779.20 × 11,760.85
  4. Step 4: Simplify right side
    20,552.59x = 361,989,554.32
  5. Step 5: Solve for x
    x = 361,989,554.32/20,552.59
  6. Step 6: Final answer
    x = 17,612.84

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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.