Home / 20,538.06-28,342.90-12,046.30

Finding the Fourth Proportional to 20,538.06, 28,342.90 and 12,046.30

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Solution

The fourth proportional to 20,538.06, 28,342.90 and 12,046.30 is: 16,624.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.06 : 28,342.90 = 12,046.30 : x
  2. Step 2: Convert to fraction form
    20,538.06/28,342.90 = 12,046.30/x
  3. Step 3: Cross multiply
    20,538.06x = 28,342.90 × 12,046.30
  4. Step 4: Simplify right side
    20,538.06x = 341,427,112.14
  5. Step 5: Solve for x
    x = 341,427,112.14/20,538.06
  6. Step 6: Final answer
    x = 16,624.12

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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.