Home / 27,120.96-40,680.23-7,399.45

Finding the Fourth Proportional to 27,120.96, 40,680.23 and 7,399.45

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Solution

The fourth proportional to 27,120.96, 40,680.23 and 7,399.45 is: 11,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,120.96 : 40,680.23 = 7,399.45 : x
  2. Step 2: Convert to fraction form
    27,120.96/40,680.23 = 7,399.45/x
  3. Step 3: Cross multiply
    27,120.96x = 40,680.23 × 7,399.45
  4. Step 4: Simplify right side
    27,120.96x = 301,011,341.73
  5. Step 5: Solve for x
    x = 301,011,341.73/27,120.96
  6. Step 6: Final answer
    x = 11,098.85

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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.