Home / 31,788-43,867.44-17,643.78

Finding the Fourth Proportional to 31,788, 43,867.44 and 17,643.78

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Solution

The fourth proportional to 31,788, 43,867.44 and 17,643.78 is: 24,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788 : 43,867.44 = 17,643.78 : x
  2. Step 2: Convert to fraction form
    31,788/43,867.44 = 17,643.78/x
  3. Step 3: Cross multiply
    31,788x = 43,867.44 × 17,643.78
  4. Step 4: Simplify right side
    31,788x = 773,987,460.52
  5. Step 5: Solve for x
    x = 773,987,460.52/31,788
  6. Step 6: Final answer
    x = 24,348.42

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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.