Home / 20,998.40-31,497.62-6,206.18

Finding the Fourth Proportional to 20,998.40, 31,497.62 and 6,206.18

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Solution

The fourth proportional to 20,998.40, 31,497.62 and 6,206.18 is: 9,309.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.40 : 31,497.62 = 6,206.18 : x
  2. Step 2: Convert to fraction form
    20,998.40/31,497.62 = 6,206.18/x
  3. Step 3: Cross multiply
    20,998.40x = 31,497.62 × 6,206.18
  4. Step 4: Simplify right side
    20,998.40x = 195,479,710.77
  5. Step 5: Solve for x
    x = 195,479,710.77/20,998.40
  6. Step 6: Final answer
    x = 9,309.27

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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.