Home / 31,498.28-47,232.60-11,771.60

Finding the Fourth Proportional to 31,498.28, 47,232.60 and 11,771.60

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Solution

The fourth proportional to 31,498.28, 47,232.60 and 11,771.60 is: 17,651.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,498.28 : 47,232.60 = 11,771.60 : x
  2. Step 2: Convert to fraction form
    31,498.28/47,232.60 = 11,771.60/x
  3. Step 3: Cross multiply
    31,498.28x = 47,232.60 × 11,771.60
  4. Step 4: Simplify right side
    31,498.28x = 556,003,274.16
  5. Step 5: Solve for x
    x = 556,003,274.16/31,498.28
  6. Step 6: Final answer
    x = 17,651.86

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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.