Home / 25,383.76-38,079.72-8,739.70

Finding the Fourth Proportional to 25,383.76, 38,079.72 and 8,739.70

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Solution

The fourth proportional to 25,383.76, 38,079.72 and 8,739.70 is: 13,110.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,383.76 : 38,079.72 = 8,739.70 : x
  2. Step 2: Convert to fraction form
    25,383.76/38,079.72 = 8,739.70/x
  3. Step 3: Cross multiply
    25,383.76x = 38,079.72 × 8,739.70
  4. Step 4: Simplify right side
    25,383.76x = 332,805,328.88
  5. Step 5: Solve for x
    x = 332,805,328.88/25,383.76
  6. Step 6: Final answer
    x = 13,110.95

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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.