Home / 20,842.89-31,267.61-6,799.68

Finding the Fourth Proportional to 20,842.89, 31,267.61 and 6,799.68

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Solution

The fourth proportional to 20,842.89, 31,267.61 and 6,799.68 is: 10,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.89 : 31,267.61 = 6,799.68 : x
  2. Step 2: Convert to fraction form
    20,842.89/31,267.61 = 6,799.68/x
  3. Step 3: Cross multiply
    20,842.89x = 31,267.61 × 6,799.68
  4. Step 4: Simplify right side
    20,842.89x = 212,609,708.37
  5. Step 5: Solve for x
    x = 212,609,708.37/20,842.89
  6. Step 6: Final answer
    x = 10,200.59

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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.