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Finding the Fourth Proportional to 27,148.32, 40,720.32 and 10,516.32

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Solution

The fourth proportional to 27,148.32, 40,720.32 and 10,516.32 is: 15,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,148.32 : 40,720.32 = 10,516.32 : x
  2. Step 2: Convert to fraction form
    27,148.32/40,720.32 = 10,516.32/x
  3. Step 3: Cross multiply
    27,148.32x = 40,720.32 × 10,516.32
  4. Step 4: Simplify right side
    27,148.32x = 428,227,915.62
  5. Step 5: Solve for x
    x = 428,227,915.62/27,148.32
  6. Step 6: Final answer
    x = 15,773.64

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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.