Home / 26,987.28-40,480.96-11,405.04

Finding the Fourth Proportional to 26,987.28, 40,480.96 and 11,405.04

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Solution

The fourth proportional to 26,987.28, 40,480.96 and 11,405.04 is: 17,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,987.28 : 40,480.96 = 11,405.04 : x
  2. Step 2: Convert to fraction form
    26,987.28/40,480.96 = 11,405.04/x
  3. Step 3: Cross multiply
    26,987.28x = 40,480.96 × 11,405.04
  4. Step 4: Simplify right side
    26,987.28x = 461,686,968.04
  5. Step 5: Solve for x
    x = 461,686,968.04/26,987.28
  6. Step 6: Final answer
    x = 17,107.58

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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.