Home / 20,967.41-31,435.85-9,867.93

Finding the Fourth Proportional to 20,967.41, 31,435.85 and 9,867.93

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Solution

The fourth proportional to 20,967.41, 31,435.85 and 9,867.93 is: 14,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967.41 : 31,435.85 = 9,867.93 : x
  2. Step 2: Convert to fraction form
    20,967.41/31,435.85 = 9,867.93/x
  3. Step 3: Cross multiply
    20,967.41x = 31,435.85 × 9,867.93
  4. Step 4: Simplify right side
    20,967.41x = 310,206,618.57
  5. Step 5: Solve for x
    x = 310,206,618.57/20,967.41
  6. Step 6: Final answer
    x = 14,794.71

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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.