Home / 25,571.25-38,355.96-8,931.22

Finding the Fourth Proportional to 25,571.25, 38,355.96 and 8,931.22

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Solution

The fourth proportional to 25,571.25, 38,355.96 and 8,931.22 is: 13,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.25 : 38,355.96 = 8,931.22 : x
  2. Step 2: Convert to fraction form
    25,571.25/38,355.96 = 8,931.22/x
  3. Step 3: Cross multiply
    25,571.25x = 38,355.96 × 8,931.22
  4. Step 4: Simplify right side
    25,571.25x = 342,565,517.07
  5. Step 5: Solve for x
    x = 342,565,517.07/25,571.25
  6. Step 6: Final answer
    x = 13,396.51

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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.