Home / 18,940.59-28,419.08-10,165.25

Finding the Fourth Proportional to 18,940.59, 28,419.08 and 10,165.25

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Solution

The fourth proportional to 18,940.59, 28,419.08 and 10,165.25 is: 15,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.59 : 28,419.08 = 10,165.25 : x
  2. Step 2: Convert to fraction form
    18,940.59/28,419.08 = 10,165.25/x
  3. Step 3: Cross multiply
    18,940.59x = 28,419.08 × 10,165.25
  4. Step 4: Simplify right side
    18,940.59x = 288,887,052.97
  5. Step 5: Solve for x
    x = 288,887,052.97/18,940.59
  6. Step 6: Final answer
    x = 15,252.27

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1.5x scale

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.