Home / 20,984.24-31,481.22-6,943.70

Finding the Fourth Proportional to 20,984.24, 31,481.22 and 6,943.70

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Solution

The fourth proportional to 20,984.24, 31,481.22 and 6,943.70 is: 10,417.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.24 : 31,481.22 = 6,943.70 : x
  2. Step 2: Convert to fraction form
    20,984.24/31,481.22 = 6,943.70/x
  3. Step 3: Cross multiply
    20,984.24x = 31,481.22 × 6,943.70
  4. Step 4: Simplify right side
    20,984.24x = 218,596,147.31
  5. Step 5: Solve for x
    x = 218,596,147.31/20,984.24
  6. Step 6: Final answer
    x = 10,417.16

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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.