Home / 20,714.09-28,586.16-11,761.30

Finding the Fourth Proportional to 20,714.09, 28,586.16 and 11,761.30

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Solution

The fourth proportional to 20,714.09, 28,586.16 and 11,761.30 is: 16,230.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.09 : 28,586.16 = 11,761.30 : x
  2. Step 2: Convert to fraction form
    20,714.09/28,586.16 = 11,761.30/x
  3. Step 3: Cross multiply
    20,714.09x = 28,586.16 × 11,761.30
  4. Step 4: Simplify right side
    20,714.09x = 336,210,201.87
  5. Step 5: Solve for x
    x = 336,210,201.87/20,714.09
  6. Step 6: Final answer
    x = 16,230.99

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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.