Home / 20,714.27-28,586.25-11,761.20

Finding the Fourth Proportional to 20,714.27, 28,586.25 and 11,761.20

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Solution

The fourth proportional to 20,714.27, 28,586.25 and 11,761.20 is: 16,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.27 : 28,586.25 = 11,761.20 : x
  2. Step 2: Convert to fraction form
    20,714.27/28,586.25 = 11,761.20/x
  3. Step 3: Cross multiply
    20,714.27x = 28,586.25 × 11,761.20
  4. Step 4: Simplify right side
    20,714.27x = 336,208,603.50
  5. Step 5: Solve for x
    x = 336,208,603.50/20,714.27
  6. Step 6: Final answer
    x = 16,230.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.