Home / 31,844.50-43,951.90-21,800.70

Finding the Fourth Proportional to 31,844.50, 43,951.90 and 21,800.70

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Solution

The fourth proportional to 31,844.50, 43,951.90 and 21,800.70 is: 30,089.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.50 : 43,951.90 = 21,800.70 : x
  2. Step 2: Convert to fraction form
    31,844.50/43,951.90 = 21,800.70/x
  3. Step 3: Cross multiply
    31,844.50x = 43,951.90 × 21,800.70
  4. Step 4: Simplify right side
    31,844.50x = 958,182,186.33
  5. Step 5: Solve for x
    x = 958,182,186.33/31,844.50
  6. Step 6: Final answer
    x = 30,089.41

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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.