Home / 42,847.26-64,273.89-13,261.20

Finding the Fourth Proportional to 42,847.26, 64,273.89 and 13,261.20

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Solution

The fourth proportional to 42,847.26, 64,273.89 and 13,261.20 is: 19,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,847.26 : 64,273.89 = 13,261.20 : x
  2. Step 2: Convert to fraction form
    42,847.26/64,273.89 = 13,261.20/x
  3. Step 3: Cross multiply
    42,847.26x = 64,273.89 × 13,261.20
  4. Step 4: Simplify right side
    42,847.26x = 852,348,910.07
  5. Step 5: Solve for x
    x = 852,348,910.07/42,847.26
  6. Step 6: Final answer
    x = 19,892.73

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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.