Home / 31,768.70-43,839.96-18,339.50

Finding the Fourth Proportional to 31,768.70, 43,839.96 and 18,339.50

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Solution

The fourth proportional to 31,768.70, 43,839.96 and 18,339.50 is: 25,308.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,768.70 : 43,839.96 = 18,339.50 : x
  2. Step 2: Convert to fraction form
    31,768.70/43,839.96 = 18,339.50/x
  3. Step 3: Cross multiply
    31,768.70x = 43,839.96 × 18,339.50
  4. Step 4: Simplify right side
    31,768.70x = 804,002,946.42
  5. Step 5: Solve for x
    x = 804,002,946.42/31,768.70
  6. Step 6: Final answer
    x = 25,308.02

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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.