Home / 20,809.67-31,215.42-6,020.09

Finding the Fourth Proportional to 20,809.67, 31,215.42 and 6,020.09

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Solution

The fourth proportional to 20,809.67, 31,215.42 and 6,020.09 is: 9,030.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809.67 : 31,215.42 = 6,020.09 : x
  2. Step 2: Convert to fraction form
    20,809.67/31,215.42 = 6,020.09/x
  3. Step 3: Cross multiply
    20,809.67x = 31,215.42 × 6,020.09
  4. Step 4: Simplify right side
    20,809.67x = 187,919,451.61
  5. Step 5: Solve for x
    x = 187,919,451.61/20,809.67
  6. Step 6: Final answer
    x = 9,030.39

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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.