Home / 20,894.28-28,834.74-11,463.48

Finding the Fourth Proportional to 20,894.28, 28,834.74 and 11,463.48

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Solution

The fourth proportional to 20,894.28, 28,834.74 and 11,463.48 is: 15,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.28 : 28,834.74 = 11,463.48 : x
  2. Step 2: Convert to fraction form
    20,894.28/28,834.74 = 11,463.48/x
  3. Step 3: Cross multiply
    20,894.28x = 28,834.74 × 11,463.48
  4. Step 4: Simplify right side
    20,894.28x = 330,546,465.30
  5. Step 5: Solve for x
    x = 330,546,465.30/20,894.28
  6. Step 6: Final answer
    x = 15,819.95

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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.