Home / 31,757.97-47,643.80-12,036.70

Finding the Fourth Proportional to 31,757.97, 47,643.80 and 12,036.70

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Solution

The fourth proportional to 31,757.97, 47,643.80 and 12,036.70 is: 18,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.97 : 47,643.80 = 12,036.70 : x
  2. Step 2: Convert to fraction form
    31,757.97/47,643.80 = 12,036.70/x
  3. Step 3: Cross multiply
    31,757.97x = 47,643.80 × 12,036.70
  4. Step 4: Simplify right side
    31,757.97x = 573,474,126.83
  5. Step 5: Solve for x
    x = 573,474,126.83/31,757.97
  6. Step 6: Final answer
    x = 18,057.64

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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.