Home / 31,507.98-47,291.13-15,936.54

Finding the Fourth Proportional to 31,507.98, 47,291.13 and 15,936.54

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Solution

The fourth proportional to 31,507.98, 47,291.13 and 15,936.54 is: 23,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.98 : 47,291.13 = 15,936.54 : x
  2. Step 2: Convert to fraction form
    31,507.98/47,291.13 = 15,936.54/x
  3. Step 3: Cross multiply
    31,507.98x = 47,291.13 × 15,936.54
  4. Step 4: Simplify right side
    31,507.98x = 753,656,984.89
  5. Step 5: Solve for x
    x = 753,656,984.89/31,507.98
  6. Step 6: Final answer
    x = 23,919.56

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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.