Home / 20,452.64-28,223.91-11,500.66

Finding the Fourth Proportional to 20,452.64, 28,223.91 and 11,500.66

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Solution

The fourth proportional to 20,452.64, 28,223.91 and 11,500.66 is: 15,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.64 : 28,223.91 = 11,500.66 : x
  2. Step 2: Convert to fraction form
    20,452.64/28,223.91 = 11,500.66/x
  3. Step 3: Cross multiply
    20,452.64x = 28,223.91 × 11,500.66
  4. Step 4: Simplify right side
    20,452.64x = 324,593,592.78
  5. Step 5: Solve for x
    x = 324,593,592.78/20,452.64
  6. Step 6: Final answer
    x = 15,870.50

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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.