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Finding the Fourth Proportional to 27,640.71, 41,460.86 and 12,841.40

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Solution

The fourth proportional to 27,640.71, 41,460.86 and 12,841.40 is: 19,262.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.71 : 41,460.86 = 12,841.40 : x
  2. Step 2: Convert to fraction form
    27,640.71/41,460.86 = 12,841.40/x
  3. Step 3: Cross multiply
    27,640.71x = 41,460.86 × 12,841.40
  4. Step 4: Simplify right side
    27,640.71x = 532,415,623.36
  5. Step 5: Solve for x
    x = 532,415,623.36/27,640.71
  6. Step 6: Final answer
    x = 19,262.01

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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.