Home / 31,904.60-47,867.10-9,722.20

Finding the Fourth Proportional to 31,904.60, 47,867.10 and 9,722.20

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Solution

The fourth proportional to 31,904.60, 47,867.10 and 9,722.20 is: 14,586.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,904.60 : 47,867.10 = 9,722.20 : x
  2. Step 2: Convert to fraction form
    31,904.60/47,867.10 = 9,722.20/x
  3. Step 3: Cross multiply
    31,904.60x = 47,867.10 × 9,722.20
  4. Step 4: Simplify right side
    31,904.60x = 465,373,519.62
  5. Step 5: Solve for x
    x = 465,373,519.62/31,904.60
  6. Step 6: Final answer
    x = 14,586.41

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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.