Home / 31,977.96-47,959.60-8,606.20

Finding the Fourth Proportional to 31,977.96, 47,959.60 and 8,606.20

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Solution

The fourth proportional to 31,977.96, 47,959.60 and 8,606.20 is: 12,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.96 : 47,959.60 = 8,606.20 : x
  2. Step 2: Convert to fraction form
    31,977.96/47,959.60 = 8,606.20/x
  3. Step 3: Cross multiply
    31,977.96x = 47,959.60 × 8,606.20
  4. Step 4: Simplify right side
    31,977.96x = 412,749,909.52
  5. Step 5: Solve for x
    x = 412,749,909.52/31,977.96
  6. Step 6: Final answer
    x = 12,907.32

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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.