Home / 18,535.99-27,930.47-15,321.10

Finding the Fourth Proportional to 18,535.99, 27,930.47 and 15,321.10

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Solution

The fourth proportional to 18,535.99, 27,930.47 and 15,321.10 is: 23,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.99 : 27,930.47 = 15,321.10 : x
  2. Step 2: Convert to fraction form
    18,535.99/27,930.47 = 15,321.10/x
  3. Step 3: Cross multiply
    18,535.99x = 27,930.47 × 15,321.10
  4. Step 4: Simplify right side
    18,535.99x = 427,925,380.87
  5. Step 5: Solve for x
    x = 427,925,380.87/18,535.99
  6. Step 6: Final answer
    x = 23,086.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.