Home / 22,623.12-31,218-13,192.56

Finding the Fourth Proportional to 22,623.12, 31,218 and 13,192.56

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Solution

The fourth proportional to 22,623.12, 31,218 and 13,192.56 is: 18,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,623.12 : 31,218 = 13,192.56 : x
  2. Step 2: Convert to fraction form
    22,623.12/31,218 = 13,192.56/x
  3. Step 3: Cross multiply
    22,623.12x = 31,218 × 13,192.56
  4. Step 4: Simplify right side
    22,623.12x = 411,845,338.08
  5. Step 5: Solve for x
    x = 411,845,338.08/22,623.12
  6. Step 6: Final answer
    x = 18,204.62

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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.