Home / 20,563.12-28,377.62-11,610.76

Finding the Fourth Proportional to 20,563.12, 28,377.62 and 11,610.76

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Solution

The fourth proportional to 20,563.12, 28,377.62 and 11,610.76 is: 16,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.12 : 28,377.62 = 11,610.76 : x
  2. Step 2: Convert to fraction form
    20,563.12/28,377.62 = 11,610.76/x
  3. Step 3: Cross multiply
    20,563.12x = 28,377.62 × 11,610.76
  4. Step 4: Simplify right side
    20,563.12x = 329,485,735.19
  5. Step 5: Solve for x
    x = 329,485,735.19/20,563.12
  6. Step 6: Final answer
    x = 16,023.14

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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.