Home / 27,078.40-40,617.12-13,923.04

Finding the Fourth Proportional to 27,078.40, 40,617.12 and 13,923.04

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Solution

The fourth proportional to 27,078.40, 40,617.12 and 13,923.04 is: 20,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,078.40 : 40,617.12 = 13,923.04 : x
  2. Step 2: Convert to fraction form
    27,078.40/40,617.12 = 13,923.04/x
  3. Step 3: Cross multiply
    27,078.40x = 40,617.12 × 13,923.04
  4. Step 4: Simplify right side
    27,078.40x = 565,513,786.44
  5. Step 5: Solve for x
    x = 565,513,786.44/27,078.40
  6. Step 6: Final answer
    x = 20,884.31

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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.