Home / 22,750.90-31,396.17-13,317.58

Finding the Fourth Proportional to 22,750.90, 31,396.17 and 13,317.58

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Solution

The fourth proportional to 22,750.90, 31,396.17 and 13,317.58 is: 18,378.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.90 : 31,396.17 = 13,317.58 : x
  2. Step 2: Convert to fraction form
    22,750.90/31,396.17 = 13,317.58/x
  3. Step 3: Cross multiply
    22,750.90x = 31,396.17 × 13,317.58
  4. Step 4: Simplify right side
    22,750.90x = 418,121,005.67
  5. Step 5: Solve for x
    x = 418,121,005.67/22,750.90
  6. Step 6: Final answer
    x = 18,378.22

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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.