Home / 38,121.82-52,606.68-21,125.62

Finding the Fourth Proportional to 38,121.82, 52,606.68 and 21,125.62

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Solution

The fourth proportional to 38,121.82, 52,606.68 and 21,125.62 is: 29,152.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.82 : 52,606.68 = 21,125.62 : x
  2. Step 2: Convert to fraction form
    38,121.82/52,606.68 = 21,125.62/x
  3. Step 3: Cross multiply
    38,121.82x = 52,606.68 × 21,125.62
  4. Step 4: Simplify right side
    38,121.82x = 1,111,348,717.68
  5. Step 5: Solve for x
    x = 1,111,348,717.68/38,121.82
  6. Step 6: Final answer
    x = 29,152.56

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Half scale
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Double scale
Find fourth proportional to 38,122.82, 52,608.06 and 21,126.62
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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.