Home / 20,677.38-28,534.92-11,246.01

Finding the Fourth Proportional to 20,677.38, 28,534.92 and 11,246.01

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Solution

The fourth proportional to 20,677.38, 28,534.92 and 11,246.01 is: 15,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.38 : 28,534.92 = 11,246.01 : x
  2. Step 2: Convert to fraction form
    20,677.38/28,534.92 = 11,246.01/x
  3. Step 3: Cross multiply
    20,677.38x = 28,534.92 × 11,246.01
  4. Step 4: Simplify right side
    20,677.38x = 320,903,796.76
  5. Step 5: Solve for x
    x = 320,903,796.76/20,677.38
  6. Step 6: Final answer
    x = 15,519.56

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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.