Home / 25,581.76-38,361.68-8,936.80

Finding the Fourth Proportional to 25,581.76, 38,361.68 and 8,936.80

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Solution

The fourth proportional to 25,581.76, 38,361.68 and 8,936.80 is: 13,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,581.76 : 38,361.68 = 8,936.80 : x
  2. Step 2: Convert to fraction form
    25,581.76/38,361.68 = 8,936.80/x
  3. Step 3: Cross multiply
    25,581.76x = 38,361.68 × 8,936.80
  4. Step 4: Simplify right side
    25,581.76x = 342,830,661.82
  5. Step 5: Solve for x
    x = 342,830,661.82/25,581.76
  6. Step 6: Final answer
    x = 13,401.37

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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.