Home / 27,106.80-40,660.20-17,805.60

Finding the Fourth Proportional to 27,106.80, 40,660.20 and 17,805.60

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Solution

The fourth proportional to 27,106.80, 40,660.20 and 17,805.60 is: 26,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,106.80 : 40,660.20 = 17,805.60 : x
  2. Step 2: Convert to fraction form
    27,106.80/40,660.20 = 17,805.60/x
  3. Step 3: Cross multiply
    27,106.80x = 40,660.20 × 17,805.60
  4. Step 4: Simplify right side
    27,106.80x = 723,979,257.12
  5. Step 5: Solve for x
    x = 723,979,257.12/27,106.80
  6. Step 6: Final answer
    x = 26,708.40

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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.