Home / 25,995.06-38,979.63-8,462.70

Finding the Fourth Proportional to 25,995.06, 38,979.63 and 8,462.70

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Solution

The fourth proportional to 25,995.06, 38,979.63 and 8,462.70 is: 12,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,995.06 : 38,979.63 = 8,462.70 : x
  2. Step 2: Convert to fraction form
    25,995.06/38,979.63 = 8,462.70/x
  3. Step 3: Cross multiply
    25,995.06x = 38,979.63 × 8,462.70
  4. Step 4: Simplify right side
    25,995.06x = 329,872,914.80
  5. Step 5: Solve for x
    x = 329,872,914.80/25,995.06
  6. Step 6: Final answer
    x = 12,689.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.