Home / 47,730.29-71,568-19,669.72

Finding the Fourth Proportional to 47,730.29, 71,568 and 19,669.72

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Solution

The fourth proportional to 47,730.29, 71,568 and 19,669.72 is: 29,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,730.29 : 71,568 = 19,669.72 : x
  2. Step 2: Convert to fraction form
    47,730.29/71,568 = 19,669.72/x
  3. Step 3: Cross multiply
    47,730.29x = 71,568 × 19,669.72
  4. Step 4: Simplify right side
    47,730.29x = 1,407,722,163.12
  5. Step 5: Solve for x
    x = 1,407,722,163.12/47,730.29
  6. Step 6: Final answer
    x = 29,493.27

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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.