Home / 31,836.24-43,922.79-18,214.34

Finding the Fourth Proportional to 31,836.24, 43,922.79 and 18,214.34

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Solution

The fourth proportional to 31,836.24, 43,922.79 and 18,214.34 is: 25,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.24 : 43,922.79 = 18,214.34 : x
  2. Step 2: Convert to fraction form
    31,836.24/43,922.79 = 18,214.34/x
  3. Step 3: Cross multiply
    31,836.24x = 43,922.79 × 18,214.34
  4. Step 4: Simplify right side
    31,836.24x = 800,024,411.19
  5. Step 5: Solve for x
    x = 800,024,411.19/31,836.24
  6. Step 6: Final answer
    x = 25,129.36

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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.