Home / 20,508.93-30,765.09-5,717.99

Finding the Fourth Proportional to 20,508.93, 30,765.09 and 5,717.99

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Solution

The fourth proportional to 20,508.93, 30,765.09 and 5,717.99 is: 8,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.93 : 30,765.09 = 5,717.99 : x
  2. Step 2: Convert to fraction form
    20,508.93/30,765.09 = 5,717.99/x
  3. Step 3: Cross multiply
    20,508.93x = 30,765.09 × 5,717.99
  4. Step 4: Simplify right side
    20,508.93x = 175,914,476.97
  5. Step 5: Solve for x
    x = 175,914,476.97/20,508.93
  6. Step 6: Final answer
    x = 8,577.46

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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.