Home / 31,972.94-47,944.82-20,709.89

Finding the Fourth Proportional to 31,972.94, 47,944.82 and 20,709.89

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Solution

The fourth proportional to 31,972.94, 47,944.82 and 20,709.89 is: 31,055.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,972.94 : 47,944.82 = 20,709.89 : x
  2. Step 2: Convert to fraction form
    31,972.94/47,944.82 = 20,709.89/x
  3. Step 3: Cross multiply
    31,972.94x = 47,944.82 × 20,709.89
  4. Step 4: Simplify right side
    31,972.94x = 992,931,940.11
  5. Step 5: Solve for x
    x = 992,931,940.11/31,972.94
  6. Step 6: Final answer
    x = 31,055.39

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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.