Home / 22,051.09-30,431.57-13,553.58

Finding the Fourth Proportional to 22,051.09, 30,431.57 and 13,553.58

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Solution

The fourth proportional to 22,051.09, 30,431.57 and 13,553.58 is: 18,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.09 : 30,431.57 = 13,553.58 : x
  2. Step 2: Convert to fraction form
    22,051.09/30,431.57 = 13,553.58/x
  3. Step 3: Cross multiply
    22,051.09x = 30,431.57 × 13,553.58
  4. Step 4: Simplify right side
    22,051.09x = 412,456,718.52
  5. Step 5: Solve for x
    x = 412,456,718.52/22,051.09
  6. Step 6: Final answer
    x = 18,704.60

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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.