Home / 20,066.88-27,693.33-11,115.36

Finding the Fourth Proportional to 20,066.88, 27,693.33 and 11,115.36

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Solution

The fourth proportional to 20,066.88, 27,693.33 and 11,115.36 is: 15,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.88 : 27,693.33 = 11,115.36 : x
  2. Step 2: Convert to fraction form
    20,066.88/27,693.33 = 11,115.36/x
  3. Step 3: Cross multiply
    20,066.88x = 27,693.33 × 11,115.36
  4. Step 4: Simplify right side
    20,066.88x = 307,821,332.55
  5. Step 5: Solve for x
    x = 307,821,332.55/20,066.88
  6. Step 6: Final answer
    x = 15,339.77

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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.