Home / 47,707.89-71,553.73-12,651.09

Finding the Fourth Proportional to 47,707.89, 71,553.73 and 12,651.09

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Solution

The fourth proportional to 47,707.89, 71,553.73 and 12,651.09 is: 18,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,707.89 : 71,553.73 = 12,651.09 : x
  2. Step 2: Convert to fraction form
    47,707.89/71,553.73 = 12,651.09/x
  3. Step 3: Cross multiply
    47,707.89x = 71,553.73 × 12,651.09
  4. Step 4: Simplify right side
    47,707.89x = 905,232,401.83
  5. Step 5: Solve for x
    x = 905,232,401.83/47,707.89
  6. Step 6: Final answer
    x = 18,974.48

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1.5x scale

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.