Home / 20,146.23-30,212.10-7,662.93

Finding the Fourth Proportional to 20,146.23, 30,212.10 and 7,662.93

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Solution

The fourth proportional to 20,146.23, 30,212.10 and 7,662.93 is: 11,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.23 : 30,212.10 = 7,662.93 : x
  2. Step 2: Convert to fraction form
    20,146.23/30,212.10 = 7,662.93/x
  3. Step 3: Cross multiply
    20,146.23x = 30,212.10 × 7,662.93
  4. Step 4: Simplify right side
    20,146.23x = 231,513,207.45
  5. Step 5: Solve for x
    x = 231,513,207.45/20,146.23
  6. Step 6: Final answer
    x = 11,491.64

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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.