Home / 31,172.90-43,007.94-17,740.79

Finding the Fourth Proportional to 31,172.90, 43,007.94 and 17,740.79

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Solution

The fourth proportional to 31,172.90, 43,007.94 and 17,740.79 is: 24,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,172.90 : 43,007.94 = 17,740.79 : x
  2. Step 2: Convert to fraction form
    31,172.90/43,007.94 = 17,740.79/x
  3. Step 3: Cross multiply
    31,172.90x = 43,007.94 × 17,740.79
  4. Step 4: Simplify right side
    31,172.90x = 762,994,616.83
  5. Step 5: Solve for x
    x = 762,994,616.83/31,172.90
  6. Step 6: Final answer
    x = 24,476.21

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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.