Home / 20,298.17-30,504.57-11,982.11

Finding the Fourth Proportional to 20,298.17, 30,504.57 and 11,982.11

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Solution

The fourth proportional to 20,298.17, 30,504.57 and 11,982.11 is: 18,006.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.17 : 30,504.57 = 11,982.11 : x
  2. Step 2: Convert to fraction form
    20,298.17/30,504.57 = 11,982.11/x
  3. Step 3: Cross multiply
    20,298.17x = 30,504.57 × 11,982.11
  4. Step 4: Simplify right side
    20,298.17x = 365,508,915.79
  5. Step 5: Solve for x
    x = 365,508,915.79/20,298.17
  6. Step 6: Final answer
    x = 18,006.99

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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.