Home / 25,401.94-38,105.40-8,759.76

Finding the Fourth Proportional to 25,401.94, 38,105.40 and 8,759.76

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Solution

The fourth proportional to 25,401.94, 38,105.40 and 8,759.76 is: 13,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.94 : 38,105.40 = 8,759.76 : x
  2. Step 2: Convert to fraction form
    25,401.94/38,105.40 = 8,759.76/x
  3. Step 3: Cross multiply
    25,401.94x = 38,105.40 × 8,759.76
  4. Step 4: Simplify right side
    25,401.94x = 333,794,158.70
  5. Step 5: Solve for x
    x = 333,794,158.70/25,401.94
  6. Step 6: Final answer
    x = 13,140.50

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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.