Home / 22,278.38-30,744.16-13,326.26

Finding the Fourth Proportional to 22,278.38, 30,744.16 and 13,326.26

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Solution

The fourth proportional to 22,278.38, 30,744.16 and 13,326.26 is: 18,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.38 : 30,744.16 = 13,326.26 : x
  2. Step 2: Convert to fraction form
    22,278.38/30,744.16 = 13,326.26/x
  3. Step 3: Cross multiply
    22,278.38x = 30,744.16 × 13,326.26
  4. Step 4: Simplify right side
    22,278.38x = 409,704,482.61
  5. Step 5: Solve for x
    x = 409,704,482.61/22,278.38
  6. Step 6: Final answer
    x = 18,390.23

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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.