Home / 47,474.91-71,220.26-21,178.67

Finding the Fourth Proportional to 47,474.91, 71,220.26 and 21,178.67

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Solution

The fourth proportional to 47,474.91, 71,220.26 and 21,178.67 is: 31,771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,474.91 : 71,220.26 = 21,178.67 : x
  2. Step 2: Convert to fraction form
    47,474.91/71,220.26 = 21,178.67/x
  3. Step 3: Cross multiply
    47,474.91x = 71,220.26 × 21,178.67
  4. Step 4: Simplify right side
    47,474.91x = 1,508,350,080.70
  5. Step 5: Solve for x
    x = 1,508,350,080.70/47,474.91
  6. Step 6: Final answer
    x = 31,771.52

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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.