Home / 47,967.31-71,945.43-12,904.21

Finding the Fourth Proportional to 47,967.31, 71,945.43 and 12,904.21

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Solution

The fourth proportional to 47,967.31, 71,945.43 and 12,904.21 is: 19,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,967.31 : 71,945.43 = 12,904.21 : x
  2. Step 2: Convert to fraction form
    47,967.31/71,945.43 = 12,904.21/x
  3. Step 3: Cross multiply
    47,967.31x = 71,945.43 × 12,904.21
  4. Step 4: Simplify right side
    47,967.31x = 928,398,937.26
  5. Step 5: Solve for x
    x = 928,398,937.26/47,967.31
  6. Step 6: Final answer
    x = 19,354.83

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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.