Home / 31,946.25-47,921.85-9,759.81

Finding the Fourth Proportional to 31,946.25, 47,921.85 and 9,759.81

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Solution

The fourth proportional to 31,946.25, 47,921.85 and 9,759.81 is: 14,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,946.25 : 47,921.85 = 9,759.81 : x
  2. Step 2: Convert to fraction form
    31,946.25/47,921.85 = 9,759.81/x
  3. Step 3: Cross multiply
    31,946.25x = 47,921.85 × 9,759.81
  4. Step 4: Simplify right side
    31,946.25x = 467,708,150.85
  5. Step 5: Solve for x
    x = 467,708,150.85/31,946.25
  6. Step 6: Final answer
    x = 14,640.47

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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.