Home / 21,066.17-29,071.31-11,634.65

Finding the Fourth Proportional to 21,066.17, 29,071.31 and 11,634.65

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Solution

The fourth proportional to 21,066.17, 29,071.31 and 11,634.65 is: 16,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.17 : 29,071.31 = 11,634.65 : x
  2. Step 2: Convert to fraction form
    21,066.17/29,071.31 = 11,634.65/x
  3. Step 3: Cross multiply
    21,066.17x = 29,071.31 × 11,634.65
  4. Step 4: Simplify right side
    21,066.17x = 338,234,458.72
  5. Step 5: Solve for x
    x = 338,234,458.72/21,066.17
  6. Step 6: Final answer
    x = 16,055.81

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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.