Home / 22,327.75-30,812.30-12,391.75

Finding the Fourth Proportional to 22,327.75, 30,812.30 and 12,391.75

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Solution

The fourth proportional to 22,327.75, 30,812.30 and 12,391.75 is: 17,100.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,327.75 : 30,812.30 = 12,391.75 : x
  2. Step 2: Convert to fraction form
    22,327.75/30,812.30 = 12,391.75/x
  3. Step 3: Cross multiply
    22,327.75x = 30,812.30 × 12,391.75
  4. Step 4: Simplify right side
    22,327.75x = 381,818,318.53
  5. Step 5: Solve for x
    x = 381,818,318.53/22,327.75
  6. Step 6: Final answer
    x = 17,100.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.