Home / 22,983.11-31,716.72-12,911.55

Finding the Fourth Proportional to 22,983.11, 31,716.72 and 12,911.55

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Solution

The fourth proportional to 22,983.11, 31,716.72 and 12,911.55 is: 17,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,983.11 : 31,716.72 = 12,911.55 : x
  2. Step 2: Convert to fraction form
    22,983.11/31,716.72 = 12,911.55/x
  3. Step 3: Cross multiply
    22,983.11x = 31,716.72 × 12,911.55
  4. Step 4: Simplify right side
    22,983.11x = 409,511,857.53
  5. Step 5: Solve for x
    x = 409,511,857.53/22,983.11
  6. Step 6: Final answer
    x = 17,817.95

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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.