Home / 22,719.96-31,353.48-12,648.84

Finding the Fourth Proportional to 22,719.96, 31,353.48 and 12,648.84

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Solution

The fourth proportional to 22,719.96, 31,353.48 and 12,648.84 is: 17,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.96 : 31,353.48 = 12,648.84 : x
  2. Step 2: Convert to fraction form
    22,719.96/31,353.48 = 12,648.84/x
  3. Step 3: Cross multiply
    22,719.96x = 31,353.48 × 12,648.84
  4. Step 4: Simplify right side
    22,719.96x = 396,585,151.96
  5. Step 5: Solve for x
    x = 396,585,151.96/22,719.96
  6. Step 6: Final answer
    x = 17,455.36

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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.