Home / 27,015.90-40,505.40-12,216.75

Finding the Fourth Proportional to 27,015.90, 40,505.40 and 12,216.75

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Solution

The fourth proportional to 27,015.90, 40,505.40 and 12,216.75 is: 18,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.90 : 40,505.40 = 12,216.75 : x
  2. Step 2: Convert to fraction form
    27,015.90/40,505.40 = 12,216.75/x
  3. Step 3: Cross multiply
    27,015.90x = 40,505.40 × 12,216.75
  4. Step 4: Simplify right side
    27,015.90x = 494,844,345.45
  5. Step 5: Solve for x
    x = 494,844,345.45/27,015.90
  6. Step 6: Final answer
    x = 18,316.78

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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.