Home / 28,134.40-42,201.64-11,494.45

Finding the Fourth Proportional to 28,134.40, 42,201.64 and 11,494.45

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Solution

The fourth proportional to 28,134.40, 42,201.64 and 11,494.45 is: 17,241.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.40 : 42,201.64 = 11,494.45 : x
  2. Step 2: Convert to fraction form
    28,134.40/42,201.64 = 11,494.45/x
  3. Step 3: Cross multiply
    28,134.40x = 42,201.64 × 11,494.45
  4. Step 4: Simplify right side
    28,134.40x = 485,084,643.25
  5. Step 5: Solve for x
    x = 485,084,643.25/28,134.40
  6. Step 6: Final answer
    x = 17,241.69

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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.