Home / 27,107.28-40,618.86-18,803.70

Finding the Fourth Proportional to 27,107.28, 40,618.86 and 18,803.70

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Solution

The fourth proportional to 27,107.28, 40,618.86 and 18,803.70 is: 28,176.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.28 : 40,618.86 = 18,803.70 : x
  2. Step 2: Convert to fraction form
    27,107.28/40,618.86 = 18,803.70/x
  3. Step 3: Cross multiply
    27,107.28x = 40,618.86 × 18,803.70
  4. Step 4: Simplify right side
    27,107.28x = 763,784,857.78
  5. Step 5: Solve for x
    x = 763,784,857.78/27,107.28
  6. Step 6: Final answer
    x = 28,176.37

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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.