Home / 31,800.12-43,876.26-17,649.42

Finding the Fourth Proportional to 31,800.12, 43,876.26 and 17,649.42

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Solution

The fourth proportional to 31,800.12, 43,876.26 and 17,649.42 is: 24,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,800.12 : 43,876.26 = 17,649.42 : x
  2. Step 2: Convert to fraction form
    31,800.12/43,876.26 = 17,649.42/x
  3. Step 3: Cross multiply
    31,800.12x = 43,876.26 × 17,649.42
  4. Step 4: Simplify right side
    31,800.12x = 774,390,540.77
  5. Step 5: Solve for x
    x = 774,390,540.77/31,800.12
  6. Step 6: Final answer
    x = 24,351.81

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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.