Home / 22,316.31-30,799.26-12,884.94

Finding the Fourth Proportional to 22,316.31, 30,799.26 and 12,884.94

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Solution

The fourth proportional to 22,316.31, 30,799.26 and 12,884.94 is: 17,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,316.31 : 30,799.26 = 12,884.94 : x
  2. Step 2: Convert to fraction form
    22,316.31/30,799.26 = 12,884.94/x
  3. Step 3: Cross multiply
    22,316.31x = 30,799.26 × 12,884.94
  4. Step 4: Simplify right side
    22,316.31x = 396,846,617.14
  5. Step 5: Solve for x
    x = 396,846,617.14/22,316.31
  6. Step 6: Final answer
    x = 17,782.81

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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.