Home / 21,401.54-32,099.88-8,252.81

Finding the Fourth Proportional to 21,401.54, 32,099.88 and 8,252.81

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Solution

The fourth proportional to 21,401.54, 32,099.88 and 8,252.81 is: 12,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.54 : 32,099.88 = 8,252.81 : x
  2. Step 2: Convert to fraction form
    21,401.54/32,099.88 = 8,252.81/x
  3. Step 3: Cross multiply
    21,401.54x = 32,099.88 × 8,252.81
  4. Step 4: Simplify right side
    21,401.54x = 264,914,210.66
  5. Step 5: Solve for x
    x = 264,914,210.66/21,401.54
  6. Step 6: Final answer
    x = 12,378.28

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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.