Home / 20,162.30-27,823.46-11,209.74

Finding the Fourth Proportional to 20,162.30, 27,823.46 and 11,209.74

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Solution

The fourth proportional to 20,162.30, 27,823.46 and 11,209.74 is: 15,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.30 : 27,823.46 = 11,209.74 : x
  2. Step 2: Convert to fraction form
    20,162.30/27,823.46 = 11,209.74/x
  3. Step 3: Cross multiply
    20,162.30x = 27,823.46 × 11,209.74
  4. Step 4: Simplify right side
    20,162.30x = 311,893,752.50
  5. Step 5: Solve for x
    x = 311,893,752.50/20,162.30
  6. Step 6: Final answer
    x = 15,469.16

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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.