Home / 18,515.90-27,773.85-17,276.60

Finding the Fourth Proportional to 18,515.90, 27,773.85 and 17,276.60

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Solution

The fourth proportional to 18,515.90, 27,773.85 and 17,276.60 is: 25,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.90 : 27,773.85 = 17,276.60 : x
  2. Step 2: Convert to fraction form
    18,515.90/27,773.85 = 17,276.60/x
  3. Step 3: Cross multiply
    18,515.90x = 27,773.85 × 17,276.60
  4. Step 4: Simplify right side
    18,515.90x = 479,837,696.91
  5. Step 5: Solve for x
    x = 479,837,696.91/18,515.90
  6. Step 6: Final answer
    x = 25,914.90

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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.