Home / 22,740.75-31,382.24-12,804.75

Finding the Fourth Proportional to 22,740.75, 31,382.24 and 12,804.75

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Solution

The fourth proportional to 22,740.75, 31,382.24 and 12,804.75 is: 17,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.75 : 31,382.24 = 12,804.75 : x
  2. Step 2: Convert to fraction form
    22,740.75/31,382.24 = 12,804.75/x
  3. Step 3: Cross multiply
    22,740.75x = 31,382.24 × 12,804.75
  4. Step 4: Simplify right side
    22,740.75x = 401,841,673.62
  5. Step 5: Solve for x
    x = 401,841,673.62/22,740.75
  6. Step 6: Final answer
    x = 17,670.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.