Home / 22,719.53-31,354.15-12,648.85

Finding the Fourth Proportional to 22,719.53, 31,354.15 and 12,648.85

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Solution

The fourth proportional to 22,719.53, 31,354.15 and 12,648.85 is: 17,456.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.53 : 31,354.15 = 12,648.85 : x
  2. Step 2: Convert to fraction form
    22,719.53/31,354.15 = 12,648.85/x
  3. Step 3: Cross multiply
    22,719.53x = 31,354.15 × 12,648.85
  4. Step 4: Simplify right side
    22,719.53x = 396,593,940.23
  5. Step 5: Solve for x
    x = 396,593,940.23/22,719.53
  6. Step 6: Final answer
    x = 17,456.08

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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.