Home / 27,992.18-38,628.51-15,894.92

Finding the Fourth Proportional to 27,992.18, 38,628.51 and 15,894.92

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Solution

The fourth proportional to 27,992.18, 38,628.51 and 15,894.92 is: 21,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.18 : 38,628.51 = 15,894.92 : x
  2. Step 2: Convert to fraction form
    27,992.18/38,628.51 = 15,894.92/x
  3. Step 3: Cross multiply
    27,992.18x = 38,628.51 × 15,894.92
  4. Step 4: Simplify right side
    27,992.18x = 613,997,076.17
  5. Step 5: Solve for x
    x = 613,997,076.17/27,992.18
  6. Step 6: Final answer
    x = 21,934.59

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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.