Home / 25,983.90-38,979.95-8,449.65

Finding the Fourth Proportional to 25,983.90, 38,979.95 and 8,449.65

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Solution

The fourth proportional to 25,983.90, 38,979.95 and 8,449.65 is: 12,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.90 : 38,979.95 = 8,449.65 : x
  2. Step 2: Convert to fraction form
    25,983.90/38,979.95 = 8,449.65/x
  3. Step 3: Cross multiply
    25,983.90x = 38,979.95 × 8,449.65
  4. Step 4: Simplify right side
    25,983.90x = 329,366,892.27
  5. Step 5: Solve for x
    x = 329,366,892.27/25,983.90
  6. Step 6: Final answer
    x = 12,675.81

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1.5x scale

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.