Home / 31,739.36-43,799.28-19,161.92

Finding the Fourth Proportional to 31,739.36, 43,799.28 and 19,161.92

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Solution

The fourth proportional to 31,739.36, 43,799.28 and 19,161.92 is: 26,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.36 : 43,799.28 = 19,161.92 : x
  2. Step 2: Convert to fraction form
    31,739.36/43,799.28 = 19,161.92/x
  3. Step 3: Cross multiply
    31,739.36x = 43,799.28 × 19,161.92
  4. Step 4: Simplify right side
    31,739.36x = 839,278,299.42
  5. Step 5: Solve for x
    x = 839,278,299.42/31,739.36
  6. Step 6: Final answer
    x = 26,442.82

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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.