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Finding the Fourth Proportional to 47,394.92, 71,090.12 and 11,856.48

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Solution

The fourth proportional to 47,394.92, 71,090.12 and 11,856.48 is: 17,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,394.92 : 71,090.12 = 11,856.48 : x
  2. Step 2: Convert to fraction form
    47,394.92/71,090.12 = 11,856.48/x
  3. Step 3: Cross multiply
    47,394.92x = 71,090.12 × 11,856.48
  4. Step 4: Simplify right side
    47,394.92x = 842,878,585.98
  5. Step 5: Solve for x
    x = 842,878,585.98/47,394.92
  6. Step 6: Final answer
    x = 17,784.15

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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.