Home / 34,277.72-47,319.18-21,719.48

Finding the Fourth Proportional to 34,277.72, 47,319.18 and 21,719.48

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Solution

The fourth proportional to 34,277.72, 47,319.18 and 21,719.48 is: 29,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,277.72 : 47,319.18 = 21,719.48 : x
  2. Step 2: Convert to fraction form
    34,277.72/47,319.18 = 21,719.48/x
  3. Step 3: Cross multiply
    34,277.72x = 47,319.18 × 21,719.48
  4. Step 4: Simplify right side
    34,277.72x = 1,027,747,983.63
  5. Step 5: Solve for x
    x = 1,027,747,983.63/34,277.72
  6. Step 6: Final answer
    x = 29,982.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.