Home / 22,750.88-31,396.41-13,319.64

Finding the Fourth Proportional to 22,750.88, 31,396.41 and 13,319.64

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Solution

The fourth proportional to 22,750.88, 31,396.41 and 13,319.64 is: 18,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.88 : 31,396.41 = 13,319.64 : x
  2. Step 2: Convert to fraction form
    22,750.88/31,396.41 = 13,319.64/x
  3. Step 3: Cross multiply
    22,750.88x = 31,396.41 × 13,319.64
  4. Step 4: Simplify right side
    22,750.88x = 418,188,878.49
  5. Step 5: Solve for x
    x = 418,188,878.49/22,750.88
  6. Step 6: Final answer
    x = 18,381.22

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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.