Home / 28,742.02-43,112.82-7,965.52

Finding the Fourth Proportional to 28,742.02, 43,112.82 and 7,965.52

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Solution

The fourth proportional to 28,742.02, 43,112.82 and 7,965.52 is: 11,948.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.02 : 43,112.82 = 7,965.52 : x
  2. Step 2: Convert to fraction form
    28,742.02/43,112.82 = 7,965.52/x
  3. Step 3: Cross multiply
    28,742.02x = 43,112.82 × 7,965.52
  4. Step 4: Simplify right side
    28,742.02x = 343,416,029.97
  5. Step 5: Solve for x
    x = 343,416,029.97/28,742.02
  6. Step 6: Final answer
    x = 11,948.22

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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.