Home / 47,682.49-71,512.80-21,394.75

Finding the Fourth Proportional to 47,682.49, 71,512.80 and 21,394.75

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Solution

The fourth proportional to 47,682.49, 71,512.80 and 21,394.75 is: 32,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,682.49 : 71,512.80 = 21,394.75 : x
  2. Step 2: Convert to fraction form
    47,682.49/71,512.80 = 21,394.75/x
  3. Step 3: Cross multiply
    47,682.49x = 71,512.80 × 21,394.75
  4. Step 4: Simplify right side
    47,682.49x = 1,529,998,477.80
  5. Step 5: Solve for x
    x = 1,529,998,477.80/47,682.49
  6. Step 6: Final answer
    x = 32,087.22

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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.