Home / 22,616.30-31,216.92-13,664.38

Finding the Fourth Proportional to 22,616.30, 31,216.92 and 13,664.38

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Solution

The fourth proportional to 22,616.30, 31,216.92 and 13,664.38 is: 18,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.30 : 31,216.92 = 13,664.38 : x
  2. Step 2: Convert to fraction form
    22,616.30/31,216.92 = 13,664.38/x
  3. Step 3: Cross multiply
    22,616.30x = 31,216.92 × 13,664.38
  4. Step 4: Simplify right side
    22,616.30x = 426,559,857.31
  5. Step 5: Solve for x
    x = 426,559,857.31/22,616.30
  6. Step 6: Final answer
    x = 18,860.73

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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.