Home / 31,668.12-43,699.50-19,744.92

Finding the Fourth Proportional to 31,668.12, 43,699.50 and 19,744.92

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Solution

The fourth proportional to 31,668.12, 43,699.50 and 19,744.92 is: 27,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,668.12 : 43,699.50 = 19,744.92 : x
  2. Step 2: Convert to fraction form
    31,668.12/43,699.50 = 19,744.92/x
  3. Step 3: Cross multiply
    31,668.12x = 43,699.50 × 19,744.92
  4. Step 4: Simplify right side
    31,668.12x = 862,843,131.54
  5. Step 5: Solve for x
    x = 862,843,131.54/31,668.12
  6. Step 6: Final answer
    x = 27,246.43

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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.