Home / 20,677.33-28,534.56-11,245.90

Finding the Fourth Proportional to 20,677.33, 28,534.56 and 11,245.90

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Solution

The fourth proportional to 20,677.33, 28,534.56 and 11,245.90 is: 15,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.33 : 28,534.56 = 11,245.90 : x
  2. Step 2: Convert to fraction form
    20,677.33/28,534.56 = 11,245.90/x
  3. Step 3: Cross multiply
    20,677.33x = 28,534.56 × 11,245.90
  4. Step 4: Simplify right side
    20,677.33x = 320,896,808.30
  5. Step 5: Solve for x
    x = 320,896,808.30/20,677.33
  6. Step 6: Final answer
    x = 15,519.26

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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.