Home / 39,680.72-54,702.24-30,232.88

Finding the Fourth Proportional to 39,680.72, 54,702.24 and 30,232.88

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Solution

The fourth proportional to 39,680.72, 54,702.24 and 30,232.88 is: 41,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.72 : 54,702.24 = 30,232.88 : x
  2. Step 2: Convert to fraction form
    39,680.72/54,702.24 = 30,232.88/x
  3. Step 3: Cross multiply
    39,680.72x = 54,702.24 × 30,232.88
  4. Step 4: Simplify right side
    39,680.72x = 1,653,806,257.65
  5. Step 5: Solve for x
    x = 1,653,806,257.65/39,680.72
  6. Step 6: Final answer
    x = 41,677.83

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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.