Home / 38,218.68-52,741.98-21,451.68

Finding the Fourth Proportional to 38,218.68, 52,741.98 and 21,451.68

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Solution

The fourth proportional to 38,218.68, 52,741.98 and 21,451.68 is: 29,603.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.68 : 52,741.98 = 21,451.68 : x
  2. Step 2: Convert to fraction form
    38,218.68/52,741.98 = 21,451.68/x
  3. Step 3: Cross multiply
    38,218.68x = 52,741.98 × 21,451.68
  4. Step 4: Simplify right side
    38,218.68x = 1,131,404,077.53
  5. Step 5: Solve for x
    x = 1,131,404,077.53/38,218.68
  6. Step 6: Final answer
    x = 29,603.43

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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.