Home / 31,083.89-42,896.89-17,654.79

Finding the Fourth Proportional to 31,083.89, 42,896.89 and 17,654.79

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Solution

The fourth proportional to 31,083.89, 42,896.89 and 17,654.79 is: 24,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,083.89 : 42,896.89 = 17,654.79 : x
  2. Step 2: Convert to fraction form
    31,083.89/42,896.89 = 17,654.79/x
  3. Step 3: Cross multiply
    31,083.89x = 42,896.89 × 17,654.79
  4. Step 4: Simplify right side
    31,083.89x = 757,335,767.53
  5. Step 5: Solve for x
    x = 757,335,767.53/31,083.89
  6. Step 6: Final answer
    x = 24,364.26

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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.