Home / 20,874.14-28,808.13-11,444.50

Finding the Fourth Proportional to 20,874.14, 28,808.13 and 11,444.50

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Solution

The fourth proportional to 20,874.14, 28,808.13 and 11,444.50 is: 15,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874.14 : 28,808.13 = 11,444.50 : x
  2. Step 2: Convert to fraction form
    20,874.14/28,808.13 = 11,444.50/x
  3. Step 3: Cross multiply
    20,874.14x = 28,808.13 × 11,444.50
  4. Step 4: Simplify right side
    20,874.14x = 329,694,643.79
  5. Step 5: Solve for x
    x = 329,694,643.79/20,874.14
  6. Step 6: Final answer
    x = 15,794.41

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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.