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Finding the Fourth Proportional to 27,281.30, 40,922.74 and 10,640.66

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Solution

The fourth proportional to 27,281.30, 40,922.74 and 10,640.66 is: 15,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,281.30 : 40,922.74 = 10,640.66 : x
  2. Step 2: Convert to fraction form
    27,281.30/40,922.74 = 10,640.66/x
  3. Step 3: Cross multiply
    27,281.30x = 40,922.74 × 10,640.66
  4. Step 4: Simplify right side
    27,281.30x = 435,444,962.61
  5. Step 5: Solve for x
    x = 435,444,962.61/27,281.30
  6. Step 6: Final answer
    x = 15,961.30

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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.