Home / 27,704.08-38,231.04-15,128.88

Finding the Fourth Proportional to 27,704.08, 38,231.04 and 15,128.88

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Solution

The fourth proportional to 27,704.08, 38,231.04 and 15,128.88 is: 20,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,704.08 : 38,231.04 = 15,128.88 : x
  2. Step 2: Convert to fraction form
    27,704.08/38,231.04 = 15,128.88/x
  3. Step 3: Cross multiply
    27,704.08x = 38,231.04 × 15,128.88
  4. Step 4: Simplify right side
    27,704.08x = 578,392,816.44
  5. Step 5: Solve for x
    x = 578,392,816.44/27,704.08
  6. Step 6: Final answer
    x = 20,877.53

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Half scale
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Double 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.