Home / 22,305.02-30,780.72-12,873.38

Finding the Fourth Proportional to 22,305.02, 30,780.72 and 12,873.38

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Solution

The fourth proportional to 22,305.02, 30,780.72 and 12,873.38 is: 17,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.02 : 30,780.72 = 12,873.38 : x
  2. Step 2: Convert to fraction form
    22,305.02/30,780.72 = 12,873.38/x
  3. Step 3: Cross multiply
    22,305.02x = 30,780.72 × 12,873.38
  4. Step 4: Simplify right side
    22,305.02x = 396,251,751.33
  5. Step 5: Solve for x
    x = 396,251,751.33/22,305.02
  6. Step 6: Final answer
    x = 17,765.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.