Home / 31,370.76-47,052.09-7,995.78

Finding the Fourth Proportional to 31,370.76, 47,052.09 and 7,995.78

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Solution

The fourth proportional to 31,370.76, 47,052.09 and 7,995.78 is: 11,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.76 : 47,052.09 = 7,995.78 : x
  2. Step 2: Convert to fraction form
    31,370.76/47,052.09 = 7,995.78/x
  3. Step 3: Cross multiply
    31,370.76x = 47,052.09 × 7,995.78
  4. Step 4: Simplify right side
    31,370.76x = 376,218,160.18
  5. Step 5: Solve for x
    x = 376,218,160.18/31,370.76
  6. Step 6: Final answer
    x = 11,992.64

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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.