Home / 31,245.87-43,106.97-19,288.44

Finding the Fourth Proportional to 31,245.87, 43,106.97 and 19,288.44

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Solution

The fourth proportional to 31,245.87, 43,106.97 and 19,288.44 is: 26,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,245.87 : 43,106.97 = 19,288.44 : x
  2. Step 2: Convert to fraction form
    31,245.87/43,106.97 = 19,288.44/x
  3. Step 3: Cross multiply
    31,245.87x = 43,106.97 × 19,288.44
  4. Step 4: Simplify right side
    31,245.87x = 831,466,204.43
  5. Step 5: Solve for x
    x = 831,466,204.43/31,245.87
  6. Step 6: Final answer
    x = 26,610.44

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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.