Home / 31,378.30-47,067.45-14,749.81

Finding the Fourth Proportional to 31,378.30, 47,067.45 and 14,749.81

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Solution

The fourth proportional to 31,378.30, 47,067.45 and 14,749.81 is: 22,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.30 : 47,067.45 = 14,749.81 : x
  2. Step 2: Convert to fraction form
    31,378.30/47,067.45 = 14,749.81/x
  3. Step 3: Cross multiply
    31,378.30x = 47,067.45 × 14,749.81
  4. Step 4: Simplify right side
    31,378.30x = 694,235,944.68
  5. Step 5: Solve for x
    x = 694,235,944.68/31,378.30
  6. Step 6: Final answer
    x = 22,124.72

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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.