Home / 31,849.53-43,921.62-21,089.49

Finding the Fourth Proportional to 31,849.53, 43,921.62 and 21,089.49

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Solution

The fourth proportional to 31,849.53, 43,921.62 and 21,089.49 is: 29,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.53 : 43,921.62 = 21,089.49 : x
  2. Step 2: Convert to fraction form
    31,849.53/43,921.62 = 21,089.49/x
  3. Step 3: Cross multiply
    31,849.53x = 43,921.62 × 21,089.49
  4. Step 4: Simplify right side
    31,849.53x = 926,284,565.77
  5. Step 5: Solve for x
    x = 926,284,565.77/31,849.53
  6. Step 6: Final answer
    x = 29,083.15

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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.