Home / 27,165.95-40,740.63-18,786.33

Finding the Fourth Proportional to 27,165.95, 40,740.63 and 18,786.33

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Solution

The fourth proportional to 27,165.95, 40,740.63 and 18,786.33 is: 28,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,165.95 : 40,740.63 = 18,786.33 : x
  2. Step 2: Convert to fraction form
    27,165.95/40,740.63 = 18,786.33/x
  3. Step 3: Cross multiply
    27,165.95x = 40,740.63 × 18,786.33
  4. Step 4: Simplify right side
    27,165.95x = 765,366,919.59
  5. Step 5: Solve for x
    x = 765,366,919.59/27,165.95
  6. Step 6: Final answer
    x = 28,173.76

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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.