Home / 28,185.39-38,882.24-18,629.01

Finding the Fourth Proportional to 28,185.39, 38,882.24 and 18,629.01

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Solution

The fourth proportional to 28,185.39, 38,882.24 and 18,629.01 is: 25,699.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.39 : 38,882.24 = 18,629.01 : x
  2. Step 2: Convert to fraction form
    28,185.39/38,882.24 = 18,629.01/x
  3. Step 3: Cross multiply
    28,185.39x = 38,882.24 × 18,629.01
  4. Step 4: Simplify right side
    28,185.39x = 724,337,544.64
  5. Step 5: Solve for x
    x = 724,337,544.64/28,185.39
  6. Step 6: Final answer
    x = 25,699.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.