Home / 42,196.20-63,318.60-15,919.80

Finding the Fourth Proportional to 42,196.20, 63,318.60 and 15,919.80

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Solution

The fourth proportional to 42,196.20, 63,318.60 and 15,919.80 is: 23,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,196.20 : 63,318.60 = 15,919.80 : x
  2. Step 2: Convert to fraction form
    42,196.20/63,318.60 = 15,919.80/x
  3. Step 3: Cross multiply
    42,196.20x = 63,318.60 × 15,919.80
  4. Step 4: Simplify right side
    42,196.20x = 1,008,019,448.28
  5. Step 5: Solve for x
    x = 1,008,019,448.28/42,196.20
  6. Step 6: Final answer
    x = 23,888.87

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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.