Home / 22,721.96-31,356.24-12,650.84

Finding the Fourth Proportional to 22,721.96, 31,356.24 and 12,650.84

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Solution

The fourth proportional to 22,721.96, 31,356.24 and 12,650.84 is: 17,458.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.96 : 31,356.24 = 12,650.84 : x
  2. Step 2: Convert to fraction form
    22,721.96/31,356.24 = 12,650.84/x
  3. Step 3: Cross multiply
    22,721.96x = 31,356.24 × 12,650.84
  4. Step 4: Simplify right side
    22,721.96x = 396,682,775.24
  5. Step 5: Solve for x
    x = 396,682,775.24/22,721.96
  6. Step 6: Final answer
    x = 17,458.12

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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.