Home / 21,381.73-32,044.34-15,478.36

Finding the Fourth Proportional to 21,381.73, 32,044.34 and 15,478.36

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Solution

The fourth proportional to 21,381.73, 32,044.34 and 15,478.36 is: 23,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381.73 : 32,044.34 = 15,478.36 : x
  2. Step 2: Convert to fraction form
    21,381.73/32,044.34 = 15,478.36/x
  3. Step 3: Cross multiply
    21,381.73x = 32,044.34 × 15,478.36
  4. Step 4: Simplify right side
    21,381.73x = 495,993,789.07
  5. Step 5: Solve for x
    x = 495,993,789.07/21,381.73
  6. Step 6: Final answer
    x = 23,197.09

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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.