Home / 22,663.11-31,269.44-13,589.90

Finding the Fourth Proportional to 22,663.11, 31,269.44 and 13,589.90

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Solution

The fourth proportional to 22,663.11, 31,269.44 and 13,589.90 is: 18,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,663.11 : 31,269.44 = 13,589.90 : x
  2. Step 2: Convert to fraction form
    22,663.11/31,269.44 = 13,589.90/x
  3. Step 3: Cross multiply
    22,663.11x = 31,269.44 × 13,589.90
  4. Step 4: Simplify right side
    22,663.11x = 424,948,562.66
  5. Step 5: Solve for x
    x = 424,948,562.66/22,663.11
  6. Step 6: Final answer
    x = 18,750.67

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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.