Home / 27,660.04-38,170.80-15,084.88

Finding the Fourth Proportional to 27,660.04, 38,170.80 and 15,084.88

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Solution

The fourth proportional to 27,660.04, 38,170.80 and 15,084.88 is: 20,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.04 : 38,170.80 = 15,084.88 : x
  2. Step 2: Convert to fraction form
    27,660.04/38,170.80 = 15,084.88/x
  3. Step 3: Cross multiply
    27,660.04x = 38,170.80 × 15,084.88
  4. Step 4: Simplify right side
    27,660.04x = 575,801,937.50
  5. Step 5: Solve for x
    x = 575,801,937.50/27,660.04
  6. Step 6: Final answer
    x = 20,817.10

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Half scale
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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.