Home / 21,932.94-32,904.28-10,239.78

Finding the Fourth Proportional to 21,932.94, 32,904.28 and 10,239.78

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Solution

The fourth proportional to 21,932.94, 32,904.28 and 10,239.78 is: 15,361.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.94 : 32,904.28 = 10,239.78 : x
  2. Step 2: Convert to fraction form
    21,932.94/32,904.28 = 10,239.78/x
  3. Step 3: Cross multiply
    21,932.94x = 32,904.28 × 10,239.78
  4. Step 4: Simplify right side
    21,932.94x = 336,932,588.26
  5. Step 5: Solve for x
    x = 336,932,588.26/21,932.94
  6. Step 6: Final answer
    x = 15,361.94

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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.