Home / 22,579.66-31,160.19-13,149.10

Finding the Fourth Proportional to 22,579.66, 31,160.19 and 13,149.10

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Solution

The fourth proportional to 22,579.66, 31,160.19 and 13,149.10 is: 18,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.66 : 31,160.19 = 13,149.10 : x
  2. Step 2: Convert to fraction form
    22,579.66/31,160.19 = 13,149.10/x
  3. Step 3: Cross multiply
    22,579.66x = 31,160.19 × 13,149.10
  4. Step 4: Simplify right side
    22,579.66x = 409,728,454.33
  5. Step 5: Solve for x
    x = 409,728,454.33/22,579.66
  6. Step 6: Final answer
    x = 18,145.91

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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.