Home / 39,442.82-54,431.87-21,538.53

Finding the Fourth Proportional to 39,442.82, 54,431.87 and 21,538.53

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Solution

The fourth proportional to 39,442.82, 54,431.87 and 21,538.53 is: 29,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,442.82 : 54,431.87 = 21,538.53 : x
  2. Step 2: Convert to fraction form
    39,442.82/54,431.87 = 21,538.53/x
  3. Step 3: Cross multiply
    39,442.82x = 54,431.87 × 21,538.53
  4. Step 4: Simplify right side
    39,442.82x = 1,172,382,357.26
  5. Step 5: Solve for x
    x = 1,172,382,357.26/39,442.82
  6. Step 6: Final answer
    x = 29,723.60

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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.