Home / 20,734.18-28,613.10-11,302.74

Finding the Fourth Proportional to 20,734.18, 28,613.10 and 11,302.74

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Solution

The fourth proportional to 20,734.18, 28,613.10 and 11,302.74 is: 15,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.18 : 28,613.10 = 11,302.74 : x
  2. Step 2: Convert to fraction form
    20,734.18/28,613.10 = 11,302.74/x
  3. Step 3: Cross multiply
    20,734.18x = 28,613.10 × 11,302.74
  4. Step 4: Simplify right side
    20,734.18x = 323,406,408.70
  5. Step 5: Solve for x
    x = 323,406,408.70/20,734.18
  6. Step 6: Final answer
    x = 15,597.74

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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.