Home / 22,320.12-33,320.07-20,764.92

Finding the Fourth Proportional to 22,320.12, 33,320.07 and 20,764.92

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Solution

The fourth proportional to 22,320.12, 33,320.07 and 20,764.92 is: 30,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,320.12 : 33,320.07 = 20,764.92 : x
  2. Step 2: Convert to fraction form
    22,320.12/33,320.07 = 20,764.92/x
  3. Step 3: Cross multiply
    22,320.12x = 33,320.07 × 20,764.92
  4. Step 4: Simplify right side
    22,320.12x = 691,888,587.94
  5. Step 5: Solve for x
    x = 691,888,587.94/22,320.12
  6. Step 6: Final answer
    x = 30,998.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.