Home / 20,135.64-27,785.15-11,757.00

Finding the Fourth Proportional to 20,135.64, 27,785.15 and 11,757.00

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Solution

The fourth proportional to 20,135.64, 27,785.15 and 11,757.00 is: 16,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.64 : 27,785.15 = 11,757.00 : x
  2. Step 2: Convert to fraction form
    20,135.64/27,785.15 = 11,757.00/x
  3. Step 3: Cross multiply
    20,135.64x = 27,785.15 × 11,757.00
  4. Step 4: Simplify right side
    20,135.64x = 326,670,107.41
  5. Step 5: Solve for x
    x = 326,670,107.41/20,135.64
  6. Step 6: Final answer
    x = 16,223.48

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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.