Home / 20,506.20-28,298.62-11,554.04

Finding the Fourth Proportional to 20,506.20, 28,298.62 and 11,554.04

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Solution

The fourth proportional to 20,506.20, 28,298.62 and 11,554.04 is: 15,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.20 : 28,298.62 = 11,554.04 : x
  2. Step 2: Convert to fraction form
    20,506.20/28,298.62 = 11,554.04/x
  3. Step 3: Cross multiply
    20,506.20x = 28,298.62 × 11,554.04
  4. Step 4: Simplify right side
    20,506.20x = 326,963,387.42
  5. Step 5: Solve for x
    x = 326,963,387.42/20,506.20
  6. Step 6: Final answer
    x = 15,944.61

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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.