Home / 31,190.12-46,780.14-11,463.80

Finding the Fourth Proportional to 31,190.12, 46,780.14 and 11,463.80

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Solution

The fourth proportional to 31,190.12, 46,780.14 and 11,463.80 is: 17,193.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.12 : 46,780.14 = 11,463.80 : x
  2. Step 2: Convert to fraction form
    31,190.12/46,780.14 = 11,463.80/x
  3. Step 3: Cross multiply
    31,190.12x = 46,780.14 × 11,463.80
  4. Step 4: Simplify right side
    31,190.12x = 536,278,168.93
  5. Step 5: Solve for x
    x = 536,278,168.93/31,190.12
  6. Step 6: Final answer
    x = 17,193.85

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1.5x scale

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.