Home / 20,894.20-28,833.90-11,462.56

Finding the Fourth Proportional to 20,894.20, 28,833.90 and 11,462.56

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Solution

The fourth proportional to 20,894.20, 28,833.90 and 11,462.56 is: 15,818.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.20 : 28,833.90 = 11,462.56 : x
  2. Step 2: Convert to fraction form
    20,894.20/28,833.90 = 11,462.56/x
  3. Step 3: Cross multiply
    20,894.20x = 28,833.90 × 11,462.56
  4. Step 4: Simplify right side
    20,894.20x = 330,510,308.78
  5. Step 5: Solve for x
    x = 330,510,308.78/20,894.20
  6. Step 6: Final answer
    x = 15,818.28

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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.