Home / 31,804.08-43,891.60-18,377.76

Finding the Fourth Proportional to 31,804.08, 43,891.60 and 18,377.76

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Solution

The fourth proportional to 31,804.08, 43,891.60 and 18,377.76 is: 25,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,804.08 : 43,891.60 = 18,377.76 : x
  2. Step 2: Convert to fraction form
    31,804.08/43,891.60 = 18,377.76/x
  3. Step 3: Cross multiply
    31,804.08x = 43,891.60 × 18,377.76
  4. Step 4: Simplify right side
    31,804.08x = 806,629,290.82
  5. Step 5: Solve for x
    x = 806,629,290.82/31,804.08
  6. Step 6: Final answer
    x = 25,362.45

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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.