Home / 20,036.12-27,650.86-12,080.91

Finding the Fourth Proportional to 20,036.12, 27,650.86 and 12,080.91

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Solution

The fourth proportional to 20,036.12, 27,650.86 and 12,080.91 is: 16,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.12 : 27,650.86 = 12,080.91 : x
  2. Step 2: Convert to fraction form
    20,036.12/27,650.86 = 12,080.91/x
  3. Step 3: Cross multiply
    20,036.12x = 27,650.86 × 12,080.91
  4. Step 4: Simplify right side
    20,036.12x = 334,047,520.88
  5. Step 5: Solve for x
    x = 334,047,520.88/20,036.12
  6. Step 6: Final answer
    x = 16,672.26

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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.