Home / 20,522.57-28,321.14-11,091.13

Finding the Fourth Proportional to 20,522.57, 28,321.14 and 11,091.13

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Solution

The fourth proportional to 20,522.57, 28,321.14 and 11,091.13 is: 15,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.57 : 28,321.14 = 11,091.13 : x
  2. Step 2: Convert to fraction form
    20,522.57/28,321.14 = 11,091.13/x
  3. Step 3: Cross multiply
    20,522.57x = 28,321.14 × 11,091.13
  4. Step 4: Simplify right side
    20,522.57x = 314,113,445.49
  5. Step 5: Solve for x
    x = 314,113,445.49/20,522.57
  6. Step 6: Final answer
    x = 15,305.76

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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.