Home / 31,433.78-43,377.41-17,285.78

Finding the Fourth Proportional to 31,433.78, 43,377.41 and 17,285.78

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Solution

The fourth proportional to 31,433.78, 43,377.41 and 17,285.78 is: 23,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.78 : 43,377.41 = 17,285.78 : x
  2. Step 2: Convert to fraction form
    31,433.78/43,377.41 = 17,285.78/x
  3. Step 3: Cross multiply
    31,433.78x = 43,377.41 × 17,285.78
  4. Step 4: Simplify right side
    31,433.78x = 749,812,366.23
  5. Step 5: Solve for x
    x = 749,812,366.23/31,433.78
  6. Step 6: Final answer
    x = 23,853.71

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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.