Home / 22,202.45-33,320.10-10,515.69

Finding the Fourth Proportional to 22,202.45, 33,320.10 and 10,515.69

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Solution

The fourth proportional to 22,202.45, 33,320.10 and 10,515.69 is: 15,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.45 : 33,320.10 = 10,515.69 : x
  2. Step 2: Convert to fraction form
    22,202.45/33,320.10 = 10,515.69/x
  3. Step 3: Cross multiply
    22,202.45x = 33,320.10 × 10,515.69
  4. Step 4: Simplify right side
    22,202.45x = 350,383,842.37
  5. Step 5: Solve for x
    x = 350,383,842.37/22,202.45
  6. Step 6: Final answer
    x = 15,781.32

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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.