Home / 20,535.44-28,326.12-12,146

Finding the Fourth Proportional to 20,535.44, 28,326.12 and 12,146

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Solution

The fourth proportional to 20,535.44, 28,326.12 and 12,146 is: 16,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.44 : 28,326.12 = 12,146 : x
  2. Step 2: Convert to fraction form
    20,535.44/28,326.12 = 12,146/x
  3. Step 3: Cross multiply
    20,535.44x = 28,326.12 × 12,146
  4. Step 4: Simplify right side
    20,535.44x = 344,049,053.52
  5. Step 5: Solve for x
    x = 344,049,053.52/20,535.44
  6. Step 6: Final answer
    x = 16,753.92

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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.