Home / 25,976.20-38,906.70-10,385.80

Finding the Fourth Proportional to 25,976.20, 38,906.70 and 10,385.80

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Solution

The fourth proportional to 25,976.20, 38,906.70 and 10,385.80 is: 15,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,976.20 : 38,906.70 = 10,385.80 : x
  2. Step 2: Convert to fraction form
    25,976.20/38,906.70 = 10,385.80/x
  3. Step 3: Cross multiply
    25,976.20x = 38,906.70 × 10,385.80
  4. Step 4: Simplify right side
    25,976.20x = 404,077,204.86
  5. Step 5: Solve for x
    x = 404,077,204.86/25,976.20
  6. Step 6: Final answer
    x = 15,555.67

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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.