Home / 28,754.24-43,126.56-7,972.16

Finding the Fourth Proportional to 28,754.24, 43,126.56 and 7,972.16

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Solution

The fourth proportional to 28,754.24, 43,126.56 and 7,972.16 is: 11,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.24 : 43,126.56 = 7,972.16 : x
  2. Step 2: Convert to fraction form
    28,754.24/43,126.56 = 7,972.16/x
  3. Step 3: Cross multiply
    28,754.24x = 43,126.56 × 7,972.16
  4. Step 4: Simplify right side
    28,754.24x = 343,811,836.57
  5. Step 5: Solve for x
    x = 343,811,836.57/28,754.24
  6. Step 6: Final answer
    x = 11,956.91

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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.