Home / 21,066.49-29,071.20-11,634.85

Finding the Fourth Proportional to 21,066.49, 29,071.20 and 11,634.85

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Solution

The fourth proportional to 21,066.49, 29,071.20 and 11,634.85 is: 16,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.49 : 29,071.20 = 11,634.85 : x
  2. Step 2: Convert to fraction form
    21,066.49/29,071.20 = 11,634.85/x
  3. Step 3: Cross multiply
    21,066.49x = 29,071.20 × 11,634.85
  4. Step 4: Simplify right side
    21,066.49x = 338,239,051.32
  5. Step 5: Solve for x
    x = 338,239,051.32/21,066.49
  6. Step 6: Final answer
    x = 16,055.79

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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.