Home / 31,579.35-43,578.86-18,150.26

Finding the Fourth Proportional to 31,579.35, 43,578.86 and 18,150.26

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Solution

The fourth proportional to 31,579.35, 43,578.86 and 18,150.26 is: 25,046.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.35 : 43,578.86 = 18,150.26 : x
  2. Step 2: Convert to fraction form
    31,579.35/43,578.86 = 18,150.26/x
  3. Step 3: Cross multiply
    31,579.35x = 43,578.86 × 18,150.26
  4. Step 4: Simplify right side
    31,579.35x = 790,967,330.86
  5. Step 5: Solve for x
    x = 790,967,330.86/31,579.35
  6. Step 6: Final answer
    x = 25,046.98

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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.