Home / 20,275.01-27,998.76-19,170.57

Finding the Fourth Proportional to 20,275.01, 27,998.76 and 19,170.57

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Solution

The fourth proportional to 20,275.01, 27,998.76 and 19,170.57 is: 26,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.01 : 27,998.76 = 19,170.57 : x
  2. Step 2: Convert to fraction form
    20,275.01/27,998.76 = 19,170.57/x
  3. Step 3: Cross multiply
    20,275.01x = 27,998.76 × 19,170.57
  4. Step 4: Simplify right side
    20,275.01x = 536,752,188.49
  5. Step 5: Solve for x
    x = 536,752,188.49/20,275.01
  6. Step 6: Final answer
    x = 26,473.58

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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.