Home / 31,748.81-47,610.87-16,949.64

Finding the Fourth Proportional to 31,748.81, 47,610.87 and 16,949.64

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Solution

The fourth proportional to 31,748.81, 47,610.87 and 16,949.64 is: 25,417.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.81 : 47,610.87 = 16,949.64 : x
  2. Step 2: Convert to fraction form
    31,748.81/47,610.87 = 16,949.64/x
  3. Step 3: Cross multiply
    31,748.81x = 47,610.87 × 16,949.64
  4. Step 4: Simplify right side
    31,748.81x = 806,987,106.59
  5. Step 5: Solve for x
    x = 806,987,106.59/31,748.81
  6. Step 6: Final answer
    x = 25,417.87

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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.