Home / 20,845.28-28,766.56-11,414.46

Finding the Fourth Proportional to 20,845.28, 28,766.56 and 11,414.46

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Solution

The fourth proportional to 20,845.28, 28,766.56 and 11,414.46 is: 15,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.28 : 28,766.56 = 11,414.46 : x
  2. Step 2: Convert to fraction form
    20,845.28/28,766.56 = 11,414.46/x
  3. Step 3: Cross multiply
    20,845.28x = 28,766.56 × 11,414.46
  4. Step 4: Simplify right side
    20,845.28x = 328,354,748.46
  5. Step 5: Solve for x
    x = 328,354,748.46/20,845.28
  6. Step 6: Final answer
    x = 15,752.00

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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.