Home / 47,977.31-71,965.97-16,812.56

Finding the Fourth Proportional to 47,977.31, 71,965.97 and 16,812.56

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Solution

The fourth proportional to 47,977.31, 71,965.97 and 16,812.56 is: 25,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,977.31 : 71,965.97 = 16,812.56 : x
  2. Step 2: Convert to fraction form
    47,977.31/71,965.97 = 16,812.56/x
  3. Step 3: Cross multiply
    47,977.31x = 71,965.97 × 16,812.56
  4. Step 4: Simplify right side
    47,977.31x = 1,209,932,347.48
  5. Step 5: Solve for x
    x = 1,209,932,347.48/47,977.31
  6. Step 6: Final answer
    x = 25,218.84

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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.