Home / 18,729.93-28,088.32-5,399.37

Finding the Fourth Proportional to 18,729.93, 28,088.32 and 5,399.37

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Solution

The fourth proportional to 18,729.93, 28,088.32 and 5,399.37 is: 8,097.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.93 : 28,088.32 = 5,399.37 : x
  2. Step 2: Convert to fraction form
    18,729.93/28,088.32 = 5,399.37/x
  3. Step 3: Cross multiply
    18,729.93x = 28,088.32 × 5,399.37
  4. Step 4: Simplify right side
    18,729.93x = 151,659,268.48
  5. Step 5: Solve for x
    x = 151,659,268.48/18,729.93
  6. Step 6: Final answer
    x = 8,097.16

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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.