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Finding the Fourth Proportional to 27,162.16, 40,741.88 and 7,440.40

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Solution

The fourth proportional to 27,162.16, 40,741.88 and 7,440.40 is: 11,160.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,162.16 : 40,741.88 = 7,440.40 : x
  2. Step 2: Convert to fraction form
    27,162.16/40,741.88 = 7,440.40/x
  3. Step 3: Cross multiply
    27,162.16x = 40,741.88 × 7,440.40
  4. Step 4: Simplify right side
    27,162.16x = 303,135,883.95
  5. Step 5: Solve for x
    x = 303,135,883.95/27,162.16
  6. Step 6: Final answer
    x = 11,160.23

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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.