Home / 42,003.40-63,033.90-18,646.60

Finding the Fourth Proportional to 42,003.40, 63,033.90 and 18,646.60

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Solution

The fourth proportional to 42,003.40, 63,033.90 and 18,646.60 is: 27,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,003.40 : 63,033.90 = 18,646.60 : x
  2. Step 2: Convert to fraction form
    42,003.40/63,033.90 = 18,646.60/x
  3. Step 3: Cross multiply
    42,003.40x = 63,033.90 × 18,646.60
  4. Step 4: Simplify right side
    42,003.40x = 1,175,367,919.74
  5. Step 5: Solve for x
    x = 1,175,367,919.74/42,003.40
  6. Step 6: Final answer
    x = 27,982.69

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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.