Home / 21,414.81-32,103.76-10,306.21

Finding the Fourth Proportional to 21,414.81, 32,103.76 and 10,306.21

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Solution

The fourth proportional to 21,414.81, 32,103.76 and 10,306.21 is: 15,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.81 : 32,103.76 = 10,306.21 : x
  2. Step 2: Convert to fraction form
    21,414.81/32,103.76 = 10,306.21/x
  3. Step 3: Cross multiply
    21,414.81x = 32,103.76 × 10,306.21
  4. Step 4: Simplify right side
    21,414.81x = 330,868,092.35
  5. Step 5: Solve for x
    x = 330,868,092.35/21,414.81
  6. Step 6: Final answer
    x = 15,450.43

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1.5x scale

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.