Home / 31,383.78-43,309.65-17,237.58

Finding the Fourth Proportional to 31,383.78, 43,309.65 and 17,237.58

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Solution

The fourth proportional to 31,383.78, 43,309.65 and 17,237.58 is: 23,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,383.78 : 43,309.65 = 17,237.58 : x
  2. Step 2: Convert to fraction form
    31,383.78/43,309.65 = 17,237.58/x
  3. Step 3: Cross multiply
    31,383.78x = 43,309.65 × 17,237.58
  4. Step 4: Simplify right side
    31,383.78x = 746,553,556.65
  5. Step 5: Solve for x
    x = 746,553,556.65/31,383.78
  6. Step 6: Final answer
    x = 23,787.88

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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.