Home / 18,955.71-28,439.03-5,810.02

Finding the Fourth Proportional to 18,955.71, 28,439.03 and 5,810.02

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Solution

The fourth proportional to 18,955.71, 28,439.03 and 5,810.02 is: 8,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.71 : 28,439.03 = 5,810.02 : x
  2. Step 2: Convert to fraction form
    18,955.71/28,439.03 = 5,810.02/x
  3. Step 3: Cross multiply
    18,955.71x = 28,439.03 × 5,810.02
  4. Step 4: Simplify right side
    18,955.71x = 165,231,333.08
  5. Step 5: Solve for x
    x = 165,231,333.08/18,955.71
  6. Step 6: Final answer
    x = 8,716.71

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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.