Home / 20,151.23-30,219.60-7,667.93

Finding the Fourth Proportional to 20,151.23, 30,219.60 and 7,667.93

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Solution

The fourth proportional to 20,151.23, 30,219.60 and 7,667.93 is: 11,499.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.23 : 30,219.60 = 7,667.93 : x
  2. Step 2: Convert to fraction form
    20,151.23/30,219.60 = 7,667.93/x
  3. Step 3: Cross multiply
    20,151.23x = 30,219.60 × 7,667.93
  4. Step 4: Simplify right side
    20,151.23x = 231,721,777.43
  5. Step 5: Solve for x
    x = 231,721,777.43/20,151.23
  6. Step 6: Final answer
    x = 11,499.14

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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.