Home / 27,997.35-38,634.89-17,386.76

Finding the Fourth Proportional to 27,997.35, 38,634.89 and 17,386.76

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Solution

The fourth proportional to 27,997.35, 38,634.89 and 17,386.76 is: 23,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,997.35 : 38,634.89 = 17,386.76 : x
  2. Step 2: Convert to fraction form
    27,997.35/38,634.89 = 17,386.76/x
  3. Step 3: Cross multiply
    27,997.35x = 38,634.89 × 17,386.76
  4. Step 4: Simplify right side
    27,997.35x = 671,735,279.95
  5. Step 5: Solve for x
    x = 671,735,279.95/27,997.35
  6. Step 6: Final answer
    x = 23,992.82

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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.