Home / 47,460.34-71,191.20-12,400

Finding the Fourth Proportional to 47,460.34, 71,191.20 and 12,400

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Solution

The fourth proportional to 47,460.34, 71,191.20 and 12,400 is: 18,600.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,460.34 : 71,191.20 = 12,400 : x
  2. Step 2: Convert to fraction form
    47,460.34/71,191.20 = 12,400/x
  3. Step 3: Cross multiply
    47,460.34x = 71,191.20 × 12,400
  4. Step 4: Simplify right side
    47,460.34x = 882,770,880
  5. Step 5: Solve for x
    x = 882,770,880/47,460.34
  6. Step 6: Final answer
    x = 18,600.18

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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.