Home / 21,077.38-29,086.73-11,645.88

Finding the Fourth Proportional to 21,077.38, 29,086.73 and 11,645.88

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Solution

The fourth proportional to 21,077.38, 29,086.73 and 11,645.88 is: 16,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.38 : 29,086.73 = 11,645.88 : x
  2. Step 2: Convert to fraction form
    21,077.38/29,086.73 = 11,645.88/x
  3. Step 3: Cross multiply
    21,077.38x = 29,086.73 × 11,645.88
  4. Step 4: Simplify right side
    21,077.38x = 338,740,363.51
  5. Step 5: Solve for x
    x = 338,740,363.51/21,077.38
  6. Step 6: Final answer
    x = 16,071.27

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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.