Home / 28,171.76-42,241.96-11,543.44

Finding the Fourth Proportional to 28,171.76, 42,241.96 and 11,543.44

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Solution

The fourth proportional to 28,171.76, 42,241.96 and 11,543.44 is: 17,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.76 : 42,241.96 = 11,543.44 : x
  2. Step 2: Convert to fraction form
    28,171.76/42,241.96 = 11,543.44/x
  3. Step 3: Cross multiply
    28,171.76x = 42,241.96 × 11,543.44
  4. Step 4: Simplify right side
    28,171.76x = 487,617,530.74
  5. Step 5: Solve for x
    x = 487,617,530.74/28,171.76
  6. Step 6: Final answer
    x = 17,308.74

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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.