Home / 38,218.12-52,741.50-21,222.76

Finding the Fourth Proportional to 38,218.12, 52,741.50 and 21,222.76

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Solution

The fourth proportional to 38,218.12, 52,741.50 and 21,222.76 is: 29,287.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.12 : 52,741.50 = 21,222.76 : x
  2. Step 2: Convert to fraction form
    38,218.12/52,741.50 = 21,222.76/x
  3. Step 3: Cross multiply
    38,218.12x = 52,741.50 × 21,222.76
  4. Step 4: Simplify right side
    38,218.12x = 1,119,320,196.54
  5. Step 5: Solve for x
    x = 1,119,320,196.54/38,218.12
  6. Step 6: Final answer
    x = 29,287.68

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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.