Home / 31,673.62-43,714.20-19,740.70

Finding the Fourth Proportional to 31,673.62, 43,714.20 and 19,740.70

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Solution

The fourth proportional to 31,673.62, 43,714.20 and 19,740.70 is: 27,245.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,673.62 : 43,714.20 = 19,740.70 : x
  2. Step 2: Convert to fraction form
    31,673.62/43,714.20 = 19,740.70/x
  3. Step 3: Cross multiply
    31,673.62x = 43,714.20 × 19,740.70
  4. Step 4: Simplify right side
    31,673.62x = 862,948,907.94
  5. Step 5: Solve for x
    x = 862,948,907.94/31,673.62
  6. Step 6: Final answer
    x = 27,245.04

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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.