Home / 20,734.16-28,613.12-11,302.79

Finding the Fourth Proportional to 20,734.16, 28,613.12 and 11,302.79

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Solution

The fourth proportional to 20,734.16, 28,613.12 and 11,302.79 is: 15,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.16 : 28,613.12 = 11,302.79 : x
  2. Step 2: Convert to fraction form
    20,734.16/28,613.12 = 11,302.79/x
  3. Step 3: Cross multiply
    20,734.16x = 28,613.12 × 11,302.79
  4. Step 4: Simplify right side
    20,734.16x = 323,407,887.03
  5. Step 5: Solve for x
    x = 323,407,887.03/20,734.16
  6. Step 6: Final answer
    x = 15,597.83

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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.