Home / 20,122.42-30,186.51-6,272.50

Finding the Fourth Proportional to 20,122.42, 30,186.51 and 6,272.50

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Solution

The fourth proportional to 20,122.42, 30,186.51 and 6,272.50 is: 9,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.42 : 30,186.51 = 6,272.50 : x
  2. Step 2: Convert to fraction form
    20,122.42/30,186.51 = 6,272.50/x
  3. Step 3: Cross multiply
    20,122.42x = 30,186.51 × 6,272.50
  4. Step 4: Simplify right side
    20,122.42x = 189,344,883.98
  5. Step 5: Solve for x
    x = 189,344,883.98/20,122.42
  6. Step 6: Final answer
    x = 9,409.65

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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.