Home / 36,220.68-49,979.97-21,118.23

Finding the Fourth Proportional to 36,220.68, 49,979.97 and 21,118.23

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Solution

The fourth proportional to 36,220.68, 49,979.97 and 21,118.23 is: 29,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,220.68 : 49,979.97 = 21,118.23 : x
  2. Step 2: Convert to fraction form
    36,220.68/49,979.97 = 21,118.23/x
  3. Step 3: Cross multiply
    36,220.68x = 49,979.97 × 21,118.23
  4. Step 4: Simplify right side
    36,220.68x = 1,055,488,501.85
  5. Step 5: Solve for x
    x = 1,055,488,501.85/36,220.68
  6. Step 6: Final answer
    x = 29,140.49

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Half scale
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Double scale
Find fourth proportional to 36,221.68, 49,981.35 and 21,119.23
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.