Home / 31,418.78-43,357.92-17,994.49

Finding the Fourth Proportional to 31,418.78, 43,357.92 and 17,994.49

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Solution

The fourth proportional to 31,418.78, 43,357.92 and 17,994.49 is: 24,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.78 : 43,357.92 = 17,994.49 : x
  2. Step 2: Convert to fraction form
    31,418.78/43,357.92 = 17,994.49/x
  3. Step 3: Cross multiply
    31,418.78x = 43,357.92 × 17,994.49
  4. Step 4: Simplify right side
    31,418.78x = 780,203,657.86
  5. Step 5: Solve for x
    x = 780,203,657.86/31,418.78
  6. Step 6: Final answer
    x = 24,832.40

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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.