Home / 21,019.51-29,005.46-11,822.44

Finding the Fourth Proportional to 21,019.51, 29,005.46 and 11,822.44

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Solution

The fourth proportional to 21,019.51, 29,005.46 and 11,822.44 is: 16,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.51 : 29,005.46 = 11,822.44 : x
  2. Step 2: Convert to fraction form
    21,019.51/29,005.46 = 11,822.44/x
  3. Step 3: Cross multiply
    21,019.51x = 29,005.46 × 11,822.44
  4. Step 4: Simplify right side
    21,019.51x = 342,915,267.56
  5. Step 5: Solve for x
    x = 342,915,267.56/21,019.51
  6. Step 6: Final answer
    x = 16,314.14

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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.