Home / 20,600.10-28,426.28-11,648.39

Finding the Fourth Proportional to 20,600.10, 28,426.28 and 11,648.39

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Solution

The fourth proportional to 20,600.10, 28,426.28 and 11,648.39 is: 16,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.10 : 28,426.28 = 11,648.39 : x
  2. Step 2: Convert to fraction form
    20,600.10/28,426.28 = 11,648.39/x
  3. Step 3: Cross multiply
    20,600.10x = 28,426.28 × 11,648.39
  4. Step 4: Simplify right side
    20,600.10x = 331,120,195.32
  5. Step 5: Solve for x
    x = 331,120,195.32/20,600.10
  6. Step 6: Final answer
    x = 16,073.72

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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.