Home / 20,677.47-28,535.13-11,246.04

Finding the Fourth Proportional to 20,677.47, 28,535.13 and 11,246.04

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Solution

The fourth proportional to 20,677.47, 28,535.13 and 11,246.04 is: 15,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.47 : 28,535.13 = 11,246.04 : x
  2. Step 2: Convert to fraction form
    20,677.47/28,535.13 = 11,246.04/x
  3. Step 3: Cross multiply
    20,677.47x = 28,535.13 × 11,246.04
  4. Step 4: Simplify right side
    20,677.47x = 320,907,213.39
  5. Step 5: Solve for x
    x = 320,907,213.39/20,677.47
  6. Step 6: Final answer
    x = 15,519.66

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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.