Home / 20,934.33-31,395.25-6,891.77

Finding the Fourth Proportional to 20,934.33, 31,395.25 and 6,891.77

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Solution

The fourth proportional to 20,934.33, 31,395.25 and 6,891.77 is: 10,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.33 : 31,395.25 = 6,891.77 : x
  2. Step 2: Convert to fraction form
    20,934.33/31,395.25 = 6,891.77/x
  3. Step 3: Cross multiply
    20,934.33x = 31,395.25 × 6,891.77
  4. Step 4: Simplify right side
    20,934.33x = 216,368,842.09
  5. Step 5: Solve for x
    x = 216,368,842.09/20,934.33
  6. Step 6: Final answer
    x = 10,335.60

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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.