Home / 42,789.94-64,184.91-11,629.78

Finding the Fourth Proportional to 42,789.94, 64,184.91 and 11,629.78

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Solution

The fourth proportional to 42,789.94, 64,184.91 and 11,629.78 is: 17,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,789.94 : 64,184.91 = 11,629.78 : x
  2. Step 2: Convert to fraction form
    42,789.94/64,184.91 = 11,629.78/x
  3. Step 3: Cross multiply
    42,789.94x = 64,184.91 × 11,629.78
  4. Step 4: Simplify right side
    42,789.94x = 746,456,382.62
  5. Step 5: Solve for x
    x = 746,456,382.62/42,789.94
  6. Step 6: Final answer
    x = 17,444.67

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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.