Home / 21,019.26-29,006.58-11,587.83

Finding the Fourth Proportional to 21,019.26, 29,006.58 and 11,587.83

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Solution

The fourth proportional to 21,019.26, 29,006.58 and 11,587.83 is: 15,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.26 : 29,006.58 = 11,587.83 : x
  2. Step 2: Convert to fraction form
    21,019.26/29,006.58 = 11,587.83/x
  3. Step 3: Cross multiply
    21,019.26x = 29,006.58 × 11,587.83
  4. Step 4: Simplify right side
    21,019.26x = 336,123,317.92
  5. Step 5: Solve for x
    x = 336,123,317.92/21,019.26
  6. Step 6: Final answer
    x = 15,991.21

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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.