Home / 31,408.05-47,099.32-15,607.43

Finding the Fourth Proportional to 31,408.05, 47,099.32 and 15,607.43

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Solution

The fourth proportional to 31,408.05, 47,099.32 and 15,607.43 is: 23,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,408.05 : 47,099.32 = 15,607.43 : x
  2. Step 2: Convert to fraction form
    31,408.05/47,099.32 = 15,607.43/x
  3. Step 3: Cross multiply
    31,408.05x = 47,099.32 × 15,607.43
  4. Step 4: Simplify right side
    31,408.05x = 735,099,594.78
  5. Step 5: Solve for x
    x = 735,099,594.78/31,408.05
  6. Step 6: Final answer
    x = 23,404.81

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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.