Home / 20,207.79-30,311.69-6,167.89

Finding the Fourth Proportional to 20,207.79, 30,311.69 and 6,167.89

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Solution

The fourth proportional to 20,207.79, 30,311.69 and 6,167.89 is: 9,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.79 : 30,311.69 = 6,167.89 : x
  2. Step 2: Convert to fraction form
    20,207.79/30,311.69 = 6,167.89/x
  3. Step 3: Cross multiply
    20,207.79x = 30,311.69 × 6,167.89
  4. Step 4: Simplify right side
    20,207.79x = 186,959,169.63
  5. Step 5: Solve for x
    x = 186,959,169.63/20,207.79
  6. Step 6: Final answer
    x = 9,251.84

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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.