Home / 31,988.89-47,983.34-16,396.57

Finding the Fourth Proportional to 31,988.89, 47,983.34 and 16,396.57

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Solution

The fourth proportional to 31,988.89, 47,983.34 and 16,396.57 is: 24,594.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,988.89 : 47,983.34 = 16,396.57 : x
  2. Step 2: Convert to fraction form
    31,988.89/47,983.34 = 16,396.57/x
  3. Step 3: Cross multiply
    31,988.89x = 47,983.34 × 16,396.57
  4. Step 4: Simplify right side
    31,988.89x = 786,762,193.14
  5. Step 5: Solve for x
    x = 786,762,193.14/31,988.89
  6. Step 6: Final answer
    x = 24,594.86

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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.