Home / 20,942.33-31,387.92-9,834.18

Finding the Fourth Proportional to 20,942.33, 31,387.92 and 9,834.18

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Solution

The fourth proportional to 20,942.33, 31,387.92 and 9,834.18 is: 14,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942.33 : 31,387.92 = 9,834.18 : x
  2. Step 2: Convert to fraction form
    20,942.33/31,387.92 = 9,834.18/x
  3. Step 3: Cross multiply
    20,942.33x = 31,387.92 × 9,834.18
  4. Step 4: Simplify right side
    20,942.33x = 308,674,455.11
  5. Step 5: Solve for x
    x = 308,674,455.11/20,942.33
  6. Step 6: Final answer
    x = 14,739.26

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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.