Home / 31,833.28-43,949.82-20,508.40

Finding the Fourth Proportional to 31,833.28, 43,949.82 and 20,508.40

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Solution

The fourth proportional to 31,833.28, 43,949.82 and 20,508.40 is: 28,314.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,833.28 : 43,949.82 = 20,508.40 : x
  2. Step 2: Convert to fraction form
    31,833.28/43,949.82 = 20,508.40/x
  3. Step 3: Cross multiply
    31,833.28x = 43,949.82 × 20,508.40
  4. Step 4: Simplify right side
    31,833.28x = 901,340,488.49
  5. Step 5: Solve for x
    x = 901,340,488.49/31,833.28
  6. Step 6: Final answer
    x = 28,314.41

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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.