Home / 22,480.07-33,739.55-8,638.79

Finding the Fourth Proportional to 22,480.07, 33,739.55 and 8,638.79

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Solution

The fourth proportional to 22,480.07, 33,739.55 and 8,638.79 is: 12,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,480.07 : 33,739.55 = 8,638.79 : x
  2. Step 2: Convert to fraction form
    22,480.07/33,739.55 = 8,638.79/x
  3. Step 3: Cross multiply
    22,480.07x = 33,739.55 × 8,638.79
  4. Step 4: Simplify right side
    22,480.07x = 291,468,993.09
  5. Step 5: Solve for x
    x = 291,468,993.09/22,480.07
  6. Step 6: Final answer
    x = 12,965.66

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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.