Home / 20,167.45-30,256.13-7,019.93

Finding the Fourth Proportional to 20,167.45, 30,256.13 and 7,019.93

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Solution

The fourth proportional to 20,167.45, 30,256.13 and 7,019.93 is: 10,531.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.45 : 30,256.13 = 7,019.93 : x
  2. Step 2: Convert to fraction form
    20,167.45/30,256.13 = 7,019.93/x
  3. Step 3: Cross multiply
    20,167.45x = 30,256.13 × 7,019.93
  4. Step 4: Simplify right side
    20,167.45x = 212,396,007.86
  5. Step 5: Solve for x
    x = 212,396,007.86/20,167.45
  6. Step 6: Final answer
    x = 10,531.63

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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.