Home / 31,217.16-43,078.32-17,791.32

Finding the Fourth Proportional to 31,217.16, 43,078.32 and 17,791.32

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Solution

The fourth proportional to 31,217.16, 43,078.32 and 17,791.32 is: 24,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,217.16 : 43,078.32 = 17,791.32 : x
  2. Step 2: Convert to fraction form
    31,217.16/43,078.32 = 17,791.32/x
  3. Step 3: Cross multiply
    31,217.16x = 43,078.32 × 17,791.32
  4. Step 4: Simplify right side
    31,217.16x = 766,420,176.18
  5. Step 5: Solve for x
    x = 766,420,176.18/31,217.16
  6. Step 6: Final answer
    x = 24,551.25

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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.