Home / 21,433.82-32,111.84-15,825.38

Finding the Fourth Proportional to 21,433.82, 32,111.84 and 15,825.38

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Solution

The fourth proportional to 21,433.82, 32,111.84 and 15,825.38 is: 23,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.82 : 32,111.84 = 15,825.38 : x
  2. Step 2: Convert to fraction form
    21,433.82/32,111.84 = 15,825.38/x
  3. Step 3: Cross multiply
    21,433.82x = 32,111.84 × 15,825.38
  4. Step 4: Simplify right side
    21,433.82x = 508,181,949.50
  5. Step 5: Solve for x
    x = 508,181,949.50/21,433.82
  6. Step 6: Final answer
    x = 23,709.36

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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.