Home / 31,718.11-43,759.77-18,962.44

Finding the Fourth Proportional to 31,718.11, 43,759.77 and 18,962.44

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Solution

The fourth proportional to 31,718.11, 43,759.77 and 18,962.44 is: 26,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.11 : 43,759.77 = 18,962.44 : x
  2. Step 2: Convert to fraction form
    31,718.11/43,759.77 = 18,962.44/x
  3. Step 3: Cross multiply
    31,718.11x = 43,759.77 × 18,962.44
  4. Step 4: Simplify right side
    31,718.11x = 829,792,013.04
  5. Step 5: Solve for x
    x = 829,792,013.04/31,718.11
  6. Step 6: Final answer
    x = 26,161.46

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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.