Home / 31,788.82-43,864.77-17,639.74

Finding the Fourth Proportional to 31,788.82, 43,864.77 and 17,639.74

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Solution

The fourth proportional to 31,788.82, 43,864.77 and 17,639.74 is: 24,340.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.82 : 43,864.77 = 17,639.74 : x
  2. Step 2: Convert to fraction form
    31,788.82/43,864.77 = 17,639.74/x
  3. Step 3: Cross multiply
    31,788.82x = 43,864.77 × 17,639.74
  4. Step 4: Simplify right side
    31,788.82x = 773,763,137.96
  5. Step 5: Solve for x
    x = 773,763,137.96/31,788.82
  6. Step 6: Final answer
    x = 24,340.73

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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.