Home / 17,991.54-26,987.19-13,838.94

Finding the Fourth Proportional to 17,991.54, 26,987.19 and 13,838.94

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Solution

The fourth proportional to 17,991.54, 26,987.19 and 13,838.94 is: 20,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.54 : 26,987.19 = 13,838.94 : x
  2. Step 2: Convert to fraction form
    17,991.54/26,987.19 = 13,838.94/x
  3. Step 3: Cross multiply
    17,991.54x = 26,987.19 × 13,838.94
  4. Step 4: Simplify right side
    17,991.54x = 373,474,103.18
  5. Step 5: Solve for x
    x = 373,474,103.18/17,991.54
  6. Step 6: Final answer
    x = 20,758.32

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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.