Home / 20,306.28-28,026.30-12,241.38

Finding the Fourth Proportional to 20,306.28, 28,026.30 and 12,241.38

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Solution

The fourth proportional to 20,306.28, 28,026.30 and 12,241.38 is: 16,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.28 : 28,026.30 = 12,241.38 : x
  2. Step 2: Convert to fraction form
    20,306.28/28,026.30 = 12,241.38/x
  3. Step 3: Cross multiply
    20,306.28x = 28,026.30 × 12,241.38
  4. Step 4: Simplify right side
    20,306.28x = 343,080,588.29
  5. Step 5: Solve for x
    x = 343,080,588.29/20,306.28
  6. Step 6: Final answer
    x = 16,895.29

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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.