Home / 20,452.14-28,226.52-12,492.72

Finding the Fourth Proportional to 20,452.14, 28,226.52 and 12,492.72

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Solution

The fourth proportional to 20,452.14, 28,226.52 and 12,492.72 is: 17,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.14 : 28,226.52 = 12,492.72 : x
  2. Step 2: Convert to fraction form
    20,452.14/28,226.52 = 12,492.72/x
  3. Step 3: Cross multiply
    20,452.14x = 28,226.52 × 12,492.72
  4. Step 4: Simplify right side
    20,452.14x = 352,626,010.93
  5. Step 5: Solve for x
    x = 352,626,010.93/20,452.14
  6. Step 6: Final answer
    x = 17,241.52

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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.