Home / 31,395.39-43,310.66-22,879.25

Finding the Fourth Proportional to 31,395.39, 43,310.66 and 22,879.25

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Solution

The fourth proportional to 31,395.39, 43,310.66 and 22,879.25 is: 31,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,395.39 : 43,310.66 = 22,879.25 : x
  2. Step 2: Convert to fraction form
    31,395.39/43,310.66 = 22,879.25/x
  3. Step 3: Cross multiply
    31,395.39x = 43,310.66 × 22,879.25
  4. Step 4: Simplify right side
    31,395.39x = 990,915,417.81
  5. Step 5: Solve for x
    x = 990,915,417.81/31,395.39
  6. Step 6: Final answer
    x = 31,562.45

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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.