Home / 25,679.40-38,519.10-8,150.60

Finding the Fourth Proportional to 25,679.40, 38,519.10 and 8,150.60

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Solution

The fourth proportional to 25,679.40, 38,519.10 and 8,150.60 is: 12,225.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,679.40 : 38,519.10 = 8,150.60 : x
  2. Step 2: Convert to fraction form
    25,679.40/38,519.10 = 8,150.60/x
  3. Step 3: Cross multiply
    25,679.40x = 38,519.10 × 8,150.60
  4. Step 4: Simplify right side
    25,679.40x = 313,953,776.46
  5. Step 5: Solve for x
    x = 313,953,776.46/25,679.40
  6. Step 6: Final answer
    x = 12,225.90

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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.