Home / 22,812.66-34,190.73-12,921.95

Finding the Fourth Proportional to 22,812.66, 34,190.73 and 12,921.95

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Solution

The fourth proportional to 22,812.66, 34,190.73 and 12,921.95 is: 19,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,812.66 : 34,190.73 = 12,921.95 : x
  2. Step 2: Convert to fraction form
    22,812.66/34,190.73 = 12,921.95/x
  3. Step 3: Cross multiply
    22,812.66x = 34,190.73 × 12,921.95
  4. Step 4: Simplify right side
    22,812.66x = 441,810,989.00
  5. Step 5: Solve for x
    x = 441,810,989.00/22,812.66
  6. Step 6: Final answer
    x = 19,366.92

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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.