Home / 31,984.86-47,977.22-8,611.32

Finding the Fourth Proportional to 31,984.86, 47,977.22 and 8,611.32

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Solution

The fourth proportional to 31,984.86, 47,977.22 and 8,611.32 is: 12,916.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,984.86 : 47,977.22 = 8,611.32 : x
  2. Step 2: Convert to fraction form
    31,984.86/47,977.22 = 8,611.32/x
  3. Step 3: Cross multiply
    31,984.86x = 47,977.22 × 8,611.32
  4. Step 4: Simplify right side
    31,984.86x = 413,147,194.13
  5. Step 5: Solve for x
    x = 413,147,194.13/31,984.86
  6. Step 6: Final answer
    x = 12,916.96

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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.