Home / 47,431.88-71,149.10-12,370.76

Finding the Fourth Proportional to 47,431.88, 71,149.10 and 12,370.76

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Solution

The fourth proportional to 47,431.88, 71,149.10 and 12,370.76 is: 18,556.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,431.88 : 71,149.10 = 12,370.76 : x
  2. Step 2: Convert to fraction form
    47,431.88/71,149.10 = 12,370.76/x
  3. Step 3: Cross multiply
    47,431.88x = 71,149.10 × 12,370.76
  4. Step 4: Simplify right side
    47,431.88x = 880,168,440.32
  5. Step 5: Solve for x
    x = 880,168,440.32/47,431.88
  6. Step 6: Final answer
    x = 18,556.47

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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.