Home / 28,694.16-42,976.32-15,343.58

Finding the Fourth Proportional to 28,694.16, 42,976.32 and 15,343.58

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Solution

The fourth proportional to 28,694.16, 42,976.32 and 15,343.58 is: 22,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,694.16 : 42,976.32 = 15,343.58 : x
  2. Step 2: Convert to fraction form
    28,694.16/42,976.32 = 15,343.58/x
  3. Step 3: Cross multiply
    28,694.16x = 42,976.32 × 15,343.58
  4. Step 4: Simplify right side
    28,694.16x = 659,410,389.14
  5. Step 5: Solve for x
    x = 659,410,389.14/28,694.16
  6. Step 6: Final answer
    x = 22,980.65

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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.