Home / 31,876.54-43,987.86-17,728.47

Finding the Fourth Proportional to 31,876.54, 43,987.86 and 17,728.47

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Solution

The fourth proportional to 31,876.54, 43,987.86 and 17,728.47 is: 24,464.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,876.54 : 43,987.86 = 17,728.47 : x
  2. Step 2: Convert to fraction form
    31,876.54/43,987.86 = 17,728.47/x
  3. Step 3: Cross multiply
    31,876.54x = 43,987.86 × 17,728.47
  4. Step 4: Simplify right side
    31,876.54x = 779,837,456.37
  5. Step 5: Solve for x
    x = 779,837,456.37/31,876.54
  6. Step 6: Final answer
    x = 24,464.31

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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.