Home / 31,956.41-47,881.64-19,438.57

Finding the Fourth Proportional to 31,956.41, 47,881.64 and 19,438.57

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Solution

The fourth proportional to 31,956.41, 47,881.64 and 19,438.57 is: 29,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,956.41 : 47,881.64 = 19,438.57 : x
  2. Step 2: Convert to fraction form
    31,956.41/47,881.64 = 19,438.57/x
  3. Step 3: Cross multiply
    31,956.41x = 47,881.64 × 19,438.57
  4. Step 4: Simplify right side
    31,956.41x = 930,750,539.75
  5. Step 5: Solve for x
    x = 930,750,539.75/31,956.41
  6. Step 6: Final answer
    x = 29,125.63

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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.