Home / 20,180.30-27,856.35-17,336.28

Finding the Fourth Proportional to 20,180.30, 27,856.35 and 17,336.28

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Solution

The fourth proportional to 20,180.30, 27,856.35 and 17,336.28 is: 23,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.30 : 27,856.35 = 17,336.28 : x
  2. Step 2: Convert to fraction form
    20,180.30/27,856.35 = 17,336.28/x
  3. Step 3: Cross multiply
    20,180.30x = 27,856.35 × 17,336.28
  4. Step 4: Simplify right side
    20,180.30x = 482,925,483.38
  5. Step 5: Solve for x
    x = 482,925,483.38/20,180.30
  6. Step 6: Final answer
    x = 23,930.55

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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.