Home / 20,958.85-31,438.33-6,167.95

Finding the Fourth Proportional to 20,958.85, 31,438.33 and 6,167.95

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Solution

The fourth proportional to 20,958.85, 31,438.33 and 6,167.95 is: 9,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.85 : 31,438.33 = 6,167.95 : x
  2. Step 2: Convert to fraction form
    20,958.85/31,438.33 = 6,167.95/x
  3. Step 3: Cross multiply
    20,958.85x = 31,438.33 × 6,167.95
  4. Step 4: Simplify right side
    20,958.85x = 193,909,953.51
  5. Step 5: Solve for x
    x = 193,909,953.51/20,958.85
  6. Step 6: Final answer
    x = 9,251.94

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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.