Home / 20,874.52-28,807.44-11,443.96

Finding the Fourth Proportional to 20,874.52, 28,807.44 and 11,443.96

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Solution

The fourth proportional to 20,874.52, 28,807.44 and 11,443.96 is: 15,793.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874.52 : 28,807.44 = 11,443.96 : x
  2. Step 2: Convert to fraction form
    20,874.52/28,807.44 = 11,443.96/x
  3. Step 3: Cross multiply
    20,874.52x = 28,807.44 × 11,443.96
  4. Step 4: Simplify right side
    20,874.52x = 329,671,191.06
  5. Step 5: Solve for x
    x = 329,671,191.06/20,874.52
  6. Step 6: Final answer
    x = 15,793.00

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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.