Home / 27,326.78-40,990.20-7,605.38

Finding the Fourth Proportional to 27,326.78, 40,990.20 and 7,605.38

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Solution

The fourth proportional to 27,326.78, 40,990.20 and 7,605.38 is: 11,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,326.78 : 40,990.20 = 7,605.38 : x
  2. Step 2: Convert to fraction form
    27,326.78/40,990.20 = 7,605.38/x
  3. Step 3: Cross multiply
    27,326.78x = 40,990.20 × 7,605.38
  4. Step 4: Simplify right side
    27,326.78x = 311,746,047.28
  5. Step 5: Solve for x
    x = 311,746,047.28/27,326.78
  6. Step 6: Final answer
    x = 11,408.08

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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.