Home / 31,115.20-46,604.73-30,430.36

Finding the Fourth Proportional to 31,115.20, 46,604.73 and 30,430.36

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Solution

The fourth proportional to 31,115.20, 46,604.73 and 30,430.36 is: 45,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,115.20 : 46,604.73 = 30,430.36 : x
  2. Step 2: Convert to fraction form
    31,115.20/46,604.73 = 30,430.36/x
  3. Step 3: Cross multiply
    31,115.20x = 46,604.73 × 30,430.36
  4. Step 4: Simplify right side
    31,115.20x = 1,418,198,711.60
  5. Step 5: Solve for x
    x = 1,418,198,711.60/31,115.20
  6. Step 6: Final answer
    x = 45,578.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.