Home / 47,969.64-71,959.41-18,412.20

Finding the Fourth Proportional to 47,969.64, 71,959.41 and 18,412.20

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Solution

The fourth proportional to 47,969.64, 71,959.41 and 18,412.20 is: 27,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,969.64 : 71,959.41 = 18,412.20 : x
  2. Step 2: Convert to fraction form
    47,969.64/71,959.41 = 18,412.20/x
  3. Step 3: Cross multiply
    47,969.64x = 71,959.41 × 18,412.20
  4. Step 4: Simplify right side
    47,969.64x = 1,324,931,048.80
  5. Step 5: Solve for x
    x = 1,324,931,048.80/47,969.64
  6. Step 6: Final answer
    x = 27,620.20

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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.