Home / 15,982.82-23,931.16-10,422.38

Finding the Fourth Proportional to 15,982.82, 23,931.16 and 10,422.38

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Solution

The fourth proportional to 15,982.82, 23,931.16 and 10,422.38 is: 15,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.82 : 23,931.16 = 10,422.38 : x
  2. Step 2: Convert to fraction form
    15,982.82/23,931.16 = 10,422.38/x
  3. Step 3: Cross multiply
    15,982.82x = 23,931.16 × 10,422.38
  4. Step 4: Simplify right side
    15,982.82x = 249,419,643.36
  5. Step 5: Solve for x
    x = 249,419,643.36/15,982.82
  6. Step 6: Final answer
    x = 15,605.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.