Home / 18,231.87-27,347.99-5,085.21

Finding the Fourth Proportional to 18,231.87, 27,347.99 and 5,085.21

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Solution

The fourth proportional to 18,231.87, 27,347.99 and 5,085.21 is: 7,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.87 : 27,347.99 = 5,085.21 : x
  2. Step 2: Convert to fraction form
    18,231.87/27,347.99 = 5,085.21/x
  3. Step 3: Cross multiply
    18,231.87x = 27,347.99 × 5,085.21
  4. Step 4: Simplify right side
    18,231.87x = 139,070,246.80
  5. Step 5: Solve for x
    x = 139,070,246.80/18,231.87
  6. Step 6: Final answer
    x = 7,627.87

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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.