Home / 20,239.13-30,351.40-8,553.26

Finding the Fourth Proportional to 20,239.13, 30,351.40 and 8,553.26

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Solution

The fourth proportional to 20,239.13, 30,351.40 and 8,553.26 is: 12,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.13 : 30,351.40 = 8,553.26 : x
  2. Step 2: Convert to fraction form
    20,239.13/30,351.40 = 8,553.26/x
  3. Step 3: Cross multiply
    20,239.13x = 30,351.40 × 8,553.26
  4. Step 4: Simplify right side
    20,239.13x = 259,603,384.11
  5. Step 5: Solve for x
    x = 259,603,384.11/20,239.13
  6. Step 6: Final answer
    x = 12,826.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.