Home / 25,648.24-38,478.12-8,119.12

Finding the Fourth Proportional to 25,648.24, 38,478.12 and 8,119.12

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Solution

The fourth proportional to 25,648.24, 38,478.12 and 8,119.12 is: 12,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,648.24 : 38,478.12 = 8,119.12 : x
  2. Step 2: Convert to fraction form
    25,648.24/38,478.12 = 8,119.12/x
  3. Step 3: Cross multiply
    25,648.24x = 38,478.12 × 8,119.12
  4. Step 4: Simplify right side
    25,648.24x = 312,408,473.65
  5. Step 5: Solve for x
    x = 312,408,473.65/25,648.24
  6. Step 6: Final answer
    x = 12,180.50

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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.