Home / 20,162.27-27,823.14-11,209.12

Finding the Fourth Proportional to 20,162.27, 27,823.14 and 11,209.12

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Solution

The fourth proportional to 20,162.27, 27,823.14 and 11,209.12 is: 15,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.27 : 27,823.14 = 11,209.12 : x
  2. Step 2: Convert to fraction form
    20,162.27/27,823.14 = 11,209.12/x
  3. Step 3: Cross multiply
    20,162.27x = 27,823.14 × 11,209.12
  4. Step 4: Simplify right side
    20,162.27x = 311,872,915.04
  5. Step 5: Solve for x
    x = 311,872,915.04/20,162.27
  6. Step 6: Final answer
    x = 15,468.14

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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.