Home / 31,643.03-43,661.22-18,214.85

Finding the Fourth Proportional to 31,643.03, 43,661.22 and 18,214.85

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Solution

The fourth proportional to 31,643.03, 43,661.22 and 18,214.85 is: 25,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,643.03 : 43,661.22 = 18,214.85 : x
  2. Step 2: Convert to fraction form
    31,643.03/43,661.22 = 18,214.85/x
  3. Step 3: Cross multiply
    31,643.03x = 43,661.22 × 18,214.85
  4. Step 4: Simplify right side
    31,643.03x = 795,282,573.12
  5. Step 5: Solve for x
    x = 795,282,573.12/31,643.03
  6. Step 6: Final answer
    x = 25,132.95

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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.