Home / 20,197.30-27,868.05-11,698.91

Finding the Fourth Proportional to 20,197.30, 27,868.05 and 11,698.91

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Solution

The fourth proportional to 20,197.30, 27,868.05 and 11,698.91 is: 16,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.30 : 27,868.05 = 11,698.91 : x
  2. Step 2: Convert to fraction form
    20,197.30/27,868.05 = 11,698.91/x
  3. Step 3: Cross multiply
    20,197.30x = 27,868.05 × 11,698.91
  4. Step 4: Simplify right side
    20,197.30x = 326,025,808.83
  5. Step 5: Solve for x
    x = 326,025,808.83/20,197.30
  6. Step 6: Final answer
    x = 16,142.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.