Home / 18,021.15-27,032.94-11,438.28

Finding the Fourth Proportional to 18,021.15, 27,032.94 and 11,438.28

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Solution

The fourth proportional to 18,021.15, 27,032.94 and 11,438.28 is: 17,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.15 : 27,032.94 = 11,438.28 : x
  2. Step 2: Convert to fraction form
    18,021.15/27,032.94 = 11,438.28/x
  3. Step 3: Cross multiply
    18,021.15x = 27,032.94 × 11,438.28
  4. Step 4: Simplify right side
    18,021.15x = 309,210,336.94
  5. Step 5: Solve for x
    x = 309,210,336.94/18,021.15
  6. Step 6: Final answer
    x = 17,158.19

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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.