Home / 20,882.07-31,328.21-6,842.84

Finding the Fourth Proportional to 20,882.07, 31,328.21 and 6,842.84

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Solution

The fourth proportional to 20,882.07, 31,328.21 and 6,842.84 is: 10,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.07 : 31,328.21 = 6,842.84 : x
  2. Step 2: Convert to fraction form
    20,882.07/31,328.21 = 6,842.84/x
  3. Step 3: Cross multiply
    20,882.07x = 31,328.21 × 6,842.84
  4. Step 4: Simplify right side
    20,882.07x = 214,373,788.98
  5. Step 5: Solve for x
    x = 214,373,788.98/20,882.07
  6. Step 6: Final answer
    x = 10,265.93

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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.