Home / 20,401.49-28,154.27-11,327

Finding the Fourth Proportional to 20,401.49, 28,154.27 and 11,327

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Solution

The fourth proportional to 20,401.49, 28,154.27 and 11,327 is: 15,631.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.49 : 28,154.27 = 11,327 : x
  2. Step 2: Convert to fraction form
    20,401.49/28,154.27 = 11,327/x
  3. Step 3: Cross multiply
    20,401.49x = 28,154.27 × 11,327
  4. Step 4: Simplify right side
    20,401.49x = 318,903,359.66
  5. Step 5: Solve for x
    x = 318,903,359.66/20,401.49
  6. Step 6: Final answer
    x = 15,631.38

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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.