Home / 27,215.38-37,556.02-15,278.48

Finding the Fourth Proportional to 27,215.38, 37,556.02 and 15,278.48

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Solution

The fourth proportional to 27,215.38, 37,556.02 and 15,278.48 is: 21,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.38 : 37,556.02 = 15,278.48 : x
  2. Step 2: Convert to fraction form
    27,215.38/37,556.02 = 15,278.48/x
  3. Step 3: Cross multiply
    27,215.38x = 37,556.02 × 15,278.48
  4. Step 4: Simplify right side
    27,215.38x = 573,798,900.45
  5. Step 5: Solve for x
    x = 573,798,900.45/27,215.38
  6. Step 6: Final answer
    x = 21,083.63

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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.