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Finding the Fourth Proportional to 18,107.30, 25,367.50 and 18,107.30

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Solution

The fourth proportional to 18,107.30, 25,367.50 and 18,107.30 is: 25,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.30 : 25,367.50 = 18,107.30 : x
  2. Step 2: Convert to fraction form
    18,107.30/25,367.50 = 18,107.30/x
  3. Step 3: Cross multiply
    18,107.30x = 25,367.50 × 18,107.30
  4. Step 4: Simplify right side
    18,107.30x = 459,336,932.75
  5. Step 5: Solve for x
    x = 459,336,932.75/18,107.30
  6. Step 6: Final answer
    x = 25,367.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.