Home / 27,087.15-40,620.62-9,312.78

Finding the Fourth Proportional to 27,087.15, 40,620.62 and 9,312.78

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Solution

The fourth proportional to 27,087.15, 40,620.62 and 9,312.78 is: 13,965.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,087.15 : 40,620.62 = 9,312.78 : x
  2. Step 2: Convert to fraction form
    27,087.15/40,620.62 = 9,312.78/x
  3. Step 3: Cross multiply
    27,087.15x = 40,620.62 × 9,312.78
  4. Step 4: Simplify right side
    27,087.15x = 378,290,873.20
  5. Step 5: Solve for x
    x = 378,290,873.20/27,087.15
  6. Step 6: Final answer
    x = 13,965.69

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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.