Home / 21,066.36-31,593.06-11,200.20

Finding the Fourth Proportional to 21,066.36, 31,593.06 and 11,200.20

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Solution

The fourth proportional to 21,066.36, 31,593.06 and 11,200.20 is: 16,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.36 : 31,593.06 = 11,200.20 : x
  2. Step 2: Convert to fraction form
    21,066.36/31,593.06 = 11,200.20/x
  3. Step 3: Cross multiply
    21,066.36x = 31,593.06 × 11,200.20
  4. Step 4: Simplify right side
    21,066.36x = 353,848,590.61
  5. Step 5: Solve for x
    x = 353,848,590.61/21,066.36
  6. Step 6: Final answer
    x = 16,796.85

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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.