Home / 20,078.08-27,643.04-17,239.84

Finding the Fourth Proportional to 20,078.08, 27,643.04 and 17,239.84

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Solution

The fourth proportional to 20,078.08, 27,643.04 and 17,239.84 is: 23,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.08 : 27,643.04 = 17,239.84 : x
  2. Step 2: Convert to fraction form
    20,078.08/27,643.04 = 17,239.84/x
  3. Step 3: Cross multiply
    20,078.08x = 27,643.04 × 17,239.84
  4. Step 4: Simplify right side
    20,078.08x = 476,561,586.71
  5. Step 5: Solve for x
    x = 476,561,586.71/20,078.08
  6. Step 6: Final answer
    x = 23,735.42

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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.