Home / 20,110.68-30,167.46-5,319.42

Finding the Fourth Proportional to 20,110.68, 30,167.46 and 5,319.42

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Solution

The fourth proportional to 20,110.68, 30,167.46 and 5,319.42 is: 7,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.68 : 30,167.46 = 5,319.42 : x
  2. Step 2: Convert to fraction form
    20,110.68/30,167.46 = 5,319.42/x
  3. Step 3: Cross multiply
    20,110.68x = 30,167.46 × 5,319.42
  4. Step 4: Simplify right side
    20,110.68x = 160,473,461.60
  5. Step 5: Solve for x
    x = 160,473,461.60/20,110.68
  6. Step 6: Final answer
    x = 7,979.51

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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.