Home / 18,079.77-27,122.10-16,986.27

Finding the Fourth Proportional to 18,079.77, 27,122.10 and 16,986.27

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Solution

The fourth proportional to 18,079.77, 27,122.10 and 16,986.27 is: 25,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.77 : 27,122.10 = 16,986.27 : x
  2. Step 2: Convert to fraction form
    18,079.77/27,122.10 = 16,986.27/x
  3. Step 3: Cross multiply
    18,079.77x = 27,122.10 × 16,986.27
  4. Step 4: Simplify right side
    18,079.77x = 460,703,313.57
  5. Step 5: Solve for x
    x = 460,703,313.57/18,079.77
  6. Step 6: Final answer
    x = 25,481.70

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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.