Home / 27,615.02-38,108.72-15,039.77

Finding the Fourth Proportional to 27,615.02, 38,108.72 and 15,039.77

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Solution

The fourth proportional to 27,615.02, 38,108.72 and 15,039.77 is: 20,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,615.02 : 38,108.72 = 15,039.77 : x
  2. Step 2: Convert to fraction form
    27,615.02/38,108.72 = 15,039.77/x
  3. Step 3: Cross multiply
    27,615.02x = 38,108.72 × 15,039.77
  4. Step 4: Simplify right side
    27,615.02x = 573,146,230.85
  5. Step 5: Solve for x
    x = 573,146,230.85/27,615.02
  6. Step 6: Final answer
    x = 20,754.88

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Half scale
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Double scale
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Similar ratio
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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.