Home / 20,066.13-30,036.06-13,789.44

Finding the Fourth Proportional to 20,066.13, 30,036.06 and 13,789.44

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Solution

The fourth proportional to 20,066.13, 30,036.06 and 13,789.44 is: 20,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.13 : 30,036.06 = 13,789.44 : x
  2. Step 2: Convert to fraction form
    20,066.13/30,036.06 = 13,789.44/x
  3. Step 3: Cross multiply
    20,066.13x = 30,036.06 × 13,789.44
  4. Step 4: Simplify right side
    20,066.13x = 414,180,447.21
  5. Step 5: Solve for x
    x = 414,180,447.21/20,066.13
  6. Step 6: Final answer
    x = 20,640.77

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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.