Home / 31,107.90-46,628.84-15,290.63

Finding the Fourth Proportional to 31,107.90, 46,628.84 and 15,290.63

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Solution

The fourth proportional to 31,107.90, 46,628.84 and 15,290.63 is: 22,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.90 : 46,628.84 = 15,290.63 : x
  2. Step 2: Convert to fraction form
    31,107.90/46,628.84 = 15,290.63/x
  3. Step 3: Cross multiply
    31,107.90x = 46,628.84 × 15,290.63
  4. Step 4: Simplify right side
    31,107.90x = 712,984,144.85
  5. Step 5: Solve for x
    x = 712,984,144.85/31,107.90
  6. Step 6: Final answer
    x = 22,919.71

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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.