Home / 21,401.21-32,109.42-9,553.91

Finding the Fourth Proportional to 21,401.21, 32,109.42 and 9,553.91

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Solution

The fourth proportional to 21,401.21, 32,109.42 and 9,553.91 is: 14,334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.21 : 32,109.42 = 9,553.91 : x
  2. Step 2: Convert to fraction form
    21,401.21/32,109.42 = 9,553.91/x
  3. Step 3: Cross multiply
    21,401.21x = 32,109.42 × 9,553.91
  4. Step 4: Simplify right side
    21,401.21x = 306,770,348.29
  5. Step 5: Solve for x
    x = 306,770,348.29/21,401.21
  6. Step 6: Final answer
    x = 14,334.26

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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.