Home / 28,120.06-38,804.16-15,544

Finding the Fourth Proportional to 28,120.06, 38,804.16 and 15,544

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Solution

The fourth proportional to 28,120.06, 38,804.16 and 15,544 is: 21,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.06 : 38,804.16 = 15,544 : x
  2. Step 2: Convert to fraction form
    28,120.06/38,804.16 = 15,544/x
  3. Step 3: Cross multiply
    28,120.06x = 38,804.16 × 15,544
  4. Step 4: Simplify right side
    28,120.06x = 603,171,863.04
  5. Step 5: Solve for x
    x = 603,171,863.04/28,120.06
  6. Step 6: Final answer
    x = 21,449.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.