Home / 22,129.48-33,163.98-11,720.44

Finding the Fourth Proportional to 22,129.48, 33,163.98 and 11,720.44

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Solution

The fourth proportional to 22,129.48, 33,163.98 and 11,720.44 is: 17,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.48 : 33,163.98 = 11,720.44 : x
  2. Step 2: Convert to fraction form
    22,129.48/33,163.98 = 11,720.44/x
  3. Step 3: Cross multiply
    22,129.48x = 33,163.98 × 11,720.44
  4. Step 4: Simplify right side
    22,129.48x = 388,696,437.75
  5. Step 5: Solve for x
    x = 388,696,437.75/22,129.48
  6. Step 6: Final answer
    x = 17,564.64

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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.