Home / 28,741.76-43,115.64-7,965.28

Finding the Fourth Proportional to 28,741.76, 43,115.64 and 7,965.28

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Solution

The fourth proportional to 28,741.76, 43,115.64 and 7,965.28 is: 11,948.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,741.76 : 43,115.64 = 7,965.28 : x
  2. Step 2: Convert to fraction form
    28,741.76/43,115.64 = 7,965.28/x
  3. Step 3: Cross multiply
    28,741.76x = 43,115.64 × 7,965.28
  4. Step 4: Simplify right side
    28,741.76x = 343,428,144.98
  5. Step 5: Solve for x
    x = 343,428,144.98/28,741.76
  6. Step 6: Final answer
    x = 11,948.75

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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.