Home / 31,954.68-47,923.80-13,239.96

Finding the Fourth Proportional to 31,954.68, 47,923.80 and 13,239.96

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Solution

The fourth proportional to 31,954.68, 47,923.80 and 13,239.96 is: 19,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,954.68 : 47,923.80 = 13,239.96 : x
  2. Step 2: Convert to fraction form
    31,954.68/47,923.80 = 13,239.96/x
  3. Step 3: Cross multiply
    31,954.68x = 47,923.80 × 13,239.96
  4. Step 4: Simplify right side
    31,954.68x = 634,509,195.05
  5. Step 5: Solve for x
    x = 634,509,195.05/31,954.68
  6. Step 6: Final answer
    x = 19,856.53

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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.