Home / 31,847.60-47,771.40-9,659.90

Finding the Fourth Proportional to 31,847.60, 47,771.40 and 9,659.90

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Solution

The fourth proportional to 31,847.60, 47,771.40 and 9,659.90 is: 14,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,847.60 : 47,771.40 = 9,659.90 : x
  2. Step 2: Convert to fraction form
    31,847.60/47,771.40 = 9,659.90/x
  3. Step 3: Cross multiply
    31,847.60x = 47,771.40 × 9,659.90
  4. Step 4: Simplify right side
    31,847.60x = 461,466,946.86
  5. Step 5: Solve for x
    x = 461,466,946.86/31,847.60
  6. Step 6: Final answer
    x = 14,489.85

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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.