Home / 42,919.68-64,382.40-11,754.24

Finding the Fourth Proportional to 42,919.68, 64,382.40 and 11,754.24

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Solution

The fourth proportional to 42,919.68, 64,382.40 and 11,754.24 is: 17,632.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,919.68 : 64,382.40 = 11,754.24 : x
  2. Step 2: Convert to fraction form
    42,919.68/64,382.40 = 11,754.24/x
  3. Step 3: Cross multiply
    42,919.68x = 64,382.40 × 11,754.24
  4. Step 4: Simplify right side
    42,919.68x = 756,766,181.38
  5. Step 5: Solve for x
    x = 756,766,181.38/42,919.68
  6. Step 6: Final answer
    x = 17,632.15

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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.