Home / 38,187.68-57,222.99-19,439.62

Finding the Fourth Proportional to 38,187.68, 57,222.99 and 19,439.62

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Solution

The fourth proportional to 38,187.68, 57,222.99 and 19,439.62 is: 29,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187.68 : 57,222.99 = 19,439.62 : x
  2. Step 2: Convert to fraction form
    38,187.68/57,222.99 = 19,439.62/x
  3. Step 3: Cross multiply
    38,187.68x = 57,222.99 × 19,439.62
  4. Step 4: Simplify right side
    38,187.68x = 1,112,393,037.81
  5. Step 5: Solve for x
    x = 1,112,393,037.81/38,187.68
  6. Step 6: Final answer
    x = 29,129.64

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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.