Home / 20,553.84-30,829.68-5,763.78

Finding the Fourth Proportional to 20,553.84, 30,829.68 and 5,763.78

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Solution

The fourth proportional to 20,553.84, 30,829.68 and 5,763.78 is: 8,645.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.84 : 30,829.68 = 5,763.78 : x
  2. Step 2: Convert to fraction form
    20,553.84/30,829.68 = 5,763.78/x
  3. Step 3: Cross multiply
    20,553.84x = 30,829.68 × 5,763.78
  4. Step 4: Simplify right side
    20,553.84x = 177,695,492.99
  5. Step 5: Solve for x
    x = 177,695,492.99/20,553.84
  6. Step 6: Final answer
    x = 8,645.37

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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.