Home / 22,719.64-31,352.24-12,648.48

Finding the Fourth Proportional to 22,719.64, 31,352.24 and 12,648.48

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Solution

The fourth proportional to 22,719.64, 31,352.24 and 12,648.48 is: 17,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.64 : 31,352.24 = 12,648.48 : x
  2. Step 2: Convert to fraction form
    22,719.64/31,352.24 = 12,648.48/x
  3. Step 3: Cross multiply
    22,719.64x = 31,352.24 × 12,648.48
  4. Step 4: Simplify right side
    22,719.64x = 396,558,180.60
  5. Step 5: Solve for x
    x = 396,558,180.60/22,719.64
  6. Step 6: Final answer
    x = 17,454.42

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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.