Home / 31,257.20-43,123.32-19,924.09

Finding the Fourth Proportional to 31,257.20, 43,123.32 and 19,924.09

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Solution

The fourth proportional to 31,257.20, 43,123.32 and 19,924.09 is: 27,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.20 : 43,123.32 = 19,924.09 : x
  2. Step 2: Convert to fraction form
    31,257.20/43,123.32 = 19,924.09/x
  3. Step 3: Cross multiply
    31,257.20x = 43,123.32 × 19,924.09
  4. Step 4: Simplify right side
    31,257.20x = 859,192,908.78
  5. Step 5: Solve for x
    x = 859,192,908.78/31,257.20
  6. Step 6: Final answer
    x = 27,487.84

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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.