Home / 20,708.23-31,052.79-6,665.65

Finding the Fourth Proportional to 20,708.23, 31,052.79 and 6,665.65

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Solution

The fourth proportional to 20,708.23, 31,052.79 and 6,665.65 is: 9,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.23 : 31,052.79 = 6,665.65 : x
  2. Step 2: Convert to fraction form
    20,708.23/31,052.79 = 6,665.65/x
  3. Step 3: Cross multiply
    20,708.23x = 31,052.79 × 6,665.65
  4. Step 4: Simplify right side
    20,708.23x = 206,987,029.66
  5. Step 5: Solve for x
    x = 206,987,029.66/20,708.23
  6. Step 6: Final answer
    x = 9,995.40

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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.