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Finding the Fourth Proportional to 27,160.40, 40,741.45 and 8,440.53

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Solution

The fourth proportional to 27,160.40, 40,741.45 and 8,440.53 is: 12,661.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,160.40 : 40,741.45 = 8,440.53 : x
  2. Step 2: Convert to fraction form
    27,160.40/40,741.45 = 8,440.53/x
  3. Step 3: Cross multiply
    27,160.40x = 40,741.45 × 8,440.53
  4. Step 4: Simplify right side
    27,160.40x = 343,879,430.97
  5. Step 5: Solve for x
    x = 343,879,430.97/27,160.40
  6. Step 6: Final answer
    x = 12,661.06

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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.