Home / 20,734.23-28,613.28-11,784.70

Finding the Fourth Proportional to 20,734.23, 28,613.28 and 11,784.70

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Solution

The fourth proportional to 20,734.23, 28,613.28 and 11,784.70 is: 16,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.23 : 28,613.28 = 11,784.70 : x
  2. Step 2: Convert to fraction form
    20,734.23/28,613.28 = 11,784.70/x
  3. Step 3: Cross multiply
    20,734.23x = 28,613.28 × 11,784.70
  4. Step 4: Simplify right side
    20,734.23x = 337,198,920.82
  5. Step 5: Solve for x
    x = 337,198,920.82/20,734.23
  6. Step 6: Final answer
    x = 16,262.91

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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.