Home / 31,719.64-43,777.76-18,288.26

Finding the Fourth Proportional to 31,719.64, 43,777.76 and 18,288.26

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Solution

The fourth proportional to 31,719.64, 43,777.76 and 18,288.26 is: 25,240.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.64 : 43,777.76 = 18,288.26 : x
  2. Step 2: Convert to fraction form
    31,719.64/43,777.76 = 18,288.26/x
  3. Step 3: Cross multiply
    31,719.64x = 43,777.76 × 18,288.26
  4. Step 4: Simplify right side
    31,719.64x = 800,618,965.66
  5. Step 5: Solve for x
    x = 800,618,965.66/31,719.64
  6. Step 6: Final answer
    x = 25,240.48

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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.