Home / 21,554.84-32,354.04-15,321.90

Finding the Fourth Proportional to 21,554.84, 32,354.04 and 15,321.90

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Solution

The fourth proportional to 21,554.84, 32,354.04 and 15,321.90 is: 22,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.84 : 32,354.04 = 15,321.90 : x
  2. Step 2: Convert to fraction form
    21,554.84/32,354.04 = 15,321.90/x
  3. Step 3: Cross multiply
    21,554.84x = 32,354.04 × 15,321.90
  4. Step 4: Simplify right side
    21,554.84x = 495,725,365.48
  5. Step 5: Solve for x
    x = 495,725,365.48/21,554.84
  6. Step 6: Final answer
    x = 22,998.33

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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.