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Finding the Fourth Proportional to 27,161.46, 40,742.19 and 7,440.12

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Solution

The fourth proportional to 27,161.46, 40,742.19 and 7,440.12 is: 11,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,161.46 : 40,742.19 = 7,440.12 : x
  2. Step 2: Convert to fraction form
    27,161.46/40,742.19 = 7,440.12/x
  3. Step 3: Cross multiply
    27,161.46x = 40,742.19 × 7,440.12
  4. Step 4: Simplify right side
    27,161.46x = 303,126,782.66
  5. Step 5: Solve for x
    x = 303,126,782.66/27,161.46
  6. Step 6: Final answer
    x = 11,160.18

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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.