Home / 21,940.16-32,877.41-13,165.43

Finding the Fourth Proportional to 21,940.16, 32,877.41 and 13,165.43

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Solution

The fourth proportional to 21,940.16, 32,877.41 and 13,165.43 is: 19,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,940.16 : 32,877.41 = 13,165.43 : x
  2. Step 2: Convert to fraction form
    21,940.16/32,877.41 = 13,165.43/x
  3. Step 3: Cross multiply
    21,940.16x = 32,877.41 × 13,165.43
  4. Step 4: Simplify right side
    21,940.16x = 432,845,009.72
  5. Step 5: Solve for x
    x = 432,845,009.72/21,940.16
  6. Step 6: Final answer
    x = 19,728.44

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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.