Home / 31,844.44-43,965.75-20,518.48

Finding the Fourth Proportional to 31,844.44, 43,965.75 and 20,518.48

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Solution

The fourth proportional to 31,844.44, 43,965.75 and 20,518.48 is: 28,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.44 : 43,965.75 = 20,518.48 : x
  2. Step 2: Convert to fraction form
    31,844.44/43,965.75 = 20,518.48/x
  3. Step 3: Cross multiply
    31,844.44x = 43,965.75 × 20,518.48
  4. Step 4: Simplify right side
    31,844.44x = 902,110,362.06
  5. Step 5: Solve for x
    x = 902,110,362.06/31,844.44
  6. Step 6: Final answer
    x = 28,328.66

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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.