Home / 27,079.36-40,620.08-8,357.72

Finding the Fourth Proportional to 27,079.36, 40,620.08 and 8,357.72

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Solution

The fourth proportional to 27,079.36, 40,620.08 and 8,357.72 is: 12,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.36 : 40,620.08 = 8,357.72 : x
  2. Step 2: Convert to fraction form
    27,079.36/40,620.08 = 8,357.72/x
  3. Step 3: Cross multiply
    27,079.36x = 40,620.08 × 8,357.72
  4. Step 4: Simplify right side
    27,079.36x = 339,491,072.81
  5. Step 5: Solve for x
    x = 339,491,072.81/27,079.36
  6. Step 6: Final answer
    x = 12,536.90

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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.