Home / 31,979.82-44,132.64-17,639.58

Finding the Fourth Proportional to 31,979.82, 44,132.64 and 17,639.58

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Solution

The fourth proportional to 31,979.82, 44,132.64 and 17,639.58 is: 24,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.82 : 44,132.64 = 17,639.58 : x
  2. Step 2: Convert to fraction form
    31,979.82/44,132.64 = 17,639.58/x
  3. Step 3: Cross multiply
    31,979.82x = 44,132.64 × 17,639.58
  4. Step 4: Simplify right side
    31,979.82x = 778,481,233.89
  5. Step 5: Solve for x
    x = 778,481,233.89/31,979.82
  6. Step 6: Final answer
    x = 24,342.89

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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.