Home / 39,511.92-59,236.92-19,780.56

Finding the Fourth Proportional to 39,511.92, 59,236.92 and 19,780.56

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Solution

The fourth proportional to 39,511.92, 59,236.92 and 19,780.56 is: 29,655.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,511.92 : 59,236.92 = 19,780.56 : x
  2. Step 2: Convert to fraction form
    39,511.92/59,236.92 = 19,780.56/x
  3. Step 3: Cross multiply
    39,511.92x = 59,236.92 × 19,780.56
  4. Step 4: Simplify right side
    39,511.92x = 1,171,739,450.28
  5. Step 5: Solve for x
    x = 1,171,739,450.28/39,511.92
  6. Step 6: Final answer
    x = 29,655.34

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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.