Home / 31,277.77-43,164.35-17,131.39

Finding the Fourth Proportional to 31,277.77, 43,164.35 and 17,131.39

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Solution

The fourth proportional to 31,277.77, 43,164.35 and 17,131.39 is: 23,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.77 : 43,164.35 = 17,131.39 : x
  2. Step 2: Convert to fraction form
    31,277.77/43,164.35 = 17,131.39/x
  3. Step 3: Cross multiply
    31,277.77x = 43,164.35 × 17,131.39
  4. Step 4: Simplify right side
    31,277.77x = 739,465,313.95
  5. Step 5: Solve for x
    x = 739,465,313.95/31,277.77
  6. Step 6: Final answer
    x = 23,641.88

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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.