Home / 47,612.72-71,433.05-21,311.61

Finding the Fourth Proportional to 47,612.72, 71,433.05 and 21,311.61

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Solution

The fourth proportional to 47,612.72, 71,433.05 and 21,311.61 is: 31,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,612.72 : 71,433.05 = 21,311.61 : x
  2. Step 2: Convert to fraction form
    47,612.72/71,433.05 = 21,311.61/x
  3. Step 3: Cross multiply
    47,612.72x = 71,433.05 × 21,311.61
  4. Step 4: Simplify right side
    47,612.72x = 1,522,353,302.71
  5. Step 5: Solve for x
    x = 1,522,353,302.71/47,612.72
  6. Step 6: Final answer
    x = 31,973.67

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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.