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Finding the Fourth Proportional to 27,269.80, 40,880.70 and 18,476.20

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Solution

The fourth proportional to 27,269.80, 40,880.70 and 18,476.20 is: 27,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,269.80 : 40,880.70 = 18,476.20 : x
  2. Step 2: Convert to fraction form
    27,269.80/40,880.70 = 18,476.20/x
  3. Step 3: Cross multiply
    27,269.80x = 40,880.70 × 18,476.20
  4. Step 4: Simplify right side
    27,269.80x = 755,319,989.34
  5. Step 5: Solve for x
    x = 755,319,989.34/27,269.80
  6. Step 6: Final answer
    x = 27,698.04

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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.