Home / 31,621.25-47,434.32-11,899.37

Finding the Fourth Proportional to 31,621.25, 47,434.32 and 11,899.37

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Solution

The fourth proportional to 31,621.25, 47,434.32 and 11,899.37 is: 17,849.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.25 : 47,434.32 = 11,899.37 : x
  2. Step 2: Convert to fraction form
    31,621.25/47,434.32 = 11,899.37/x
  3. Step 3: Cross multiply
    31,621.25x = 47,434.32 × 11,899.37
  4. Step 4: Simplify right side
    31,621.25x = 564,438,287.21
  5. Step 5: Solve for x
    x = 564,438,287.21/31,621.25
  6. Step 6: Final answer
    x = 17,849.97

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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.