Home / 21,401.35-32,111.21-8,262.95

Finding the Fourth Proportional to 21,401.35, 32,111.21 and 8,262.95

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Solution

The fourth proportional to 21,401.35, 32,111.21 and 8,262.95 is: 12,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.35 : 32,111.21 = 8,262.95 : x
  2. Step 2: Convert to fraction form
    21,401.35/32,111.21 = 8,262.95/x
  3. Step 3: Cross multiply
    21,401.35x = 32,111.21 × 8,262.95
  4. Step 4: Simplify right side
    21,401.35x = 265,333,120.80
  5. Step 5: Solve for x
    x = 265,333,120.80/21,401.35
  6. Step 6: Final answer
    x = 12,397.96

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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.