Home / 22,883.23-31,578.53-12,811.64

Finding the Fourth Proportional to 22,883.23, 31,578.53 and 12,811.64

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Solution

The fourth proportional to 22,883.23, 31,578.53 and 12,811.64 is: 17,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,883.23 : 31,578.53 = 12,811.64 : x
  2. Step 2: Convert to fraction form
    22,883.23/31,578.53 = 12,811.64/x
  3. Step 3: Cross multiply
    22,883.23x = 31,578.53 × 12,811.64
  4. Step 4: Simplify right side
    22,883.23x = 404,572,910.68
  5. Step 5: Solve for x
    x = 404,572,910.68/22,883.23
  6. Step 6: Final answer
    x = 17,679.88

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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.