Home / 20,212.05-30,306.31-7,732.93

Finding the Fourth Proportional to 20,212.05, 30,306.31 and 7,732.93

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Solution

The fourth proportional to 20,212.05, 30,306.31 and 7,732.93 is: 11,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.05 : 30,306.31 = 7,732.93 : x
  2. Step 2: Convert to fraction form
    20,212.05/30,306.31 = 7,732.93/x
  3. Step 3: Cross multiply
    20,212.05x = 30,306.31 × 7,732.93
  4. Step 4: Simplify right side
    20,212.05x = 234,356,573.79
  5. Step 5: Solve for x
    x = 234,356,573.79/20,212.05
  6. Step 6: Final answer
    x = 11,594.89

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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.