Home / 39,359.49-54,314.52-21,454.12

Finding the Fourth Proportional to 39,359.49, 54,314.52 and 21,454.12

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Solution

The fourth proportional to 39,359.49, 54,314.52 and 21,454.12 is: 29,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,359.49 : 54,314.52 = 21,454.12 : x
  2. Step 2: Convert to fraction form
    39,359.49/54,314.52 = 21,454.12/x
  3. Step 3: Cross multiply
    39,359.49x = 54,314.52 × 21,454.12
  4. Step 4: Simplify right side
    39,359.49x = 1,165,270,229.82
  5. Step 5: Solve for x
    x = 1,165,270,229.82/39,359.49
  6. Step 6: Final answer
    x = 29,605.83

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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.