Home / 39,841.56-54,979.31-21,933.11

Finding the Fourth Proportional to 39,841.56, 54,979.31 and 21,933.11

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Solution

The fourth proportional to 39,841.56, 54,979.31 and 21,933.11 is: 30,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,841.56 : 54,979.31 = 21,933.11 : x
  2. Step 2: Convert to fraction form
    39,841.56/54,979.31 = 21,933.11/x
  3. Step 3: Cross multiply
    39,841.56x = 54,979.31 × 21,933.11
  4. Step 4: Simplify right side
    39,841.56x = 1,205,867,446.24
  5. Step 5: Solve for x
    x = 1,205,867,446.24/39,841.56
  6. Step 6: Final answer
    x = 30,266.57

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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.