Home / 38,936.41-53,731.61-21,942.39

Finding the Fourth Proportional to 38,936.41, 53,731.61 and 21,942.39

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Solution

The fourth proportional to 38,936.41, 53,731.61 and 21,942.39 is: 30,280.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,936.41 : 53,731.61 = 21,942.39 : x
  2. Step 2: Convert to fraction form
    38,936.41/53,731.61 = 21,942.39/x
  3. Step 3: Cross multiply
    38,936.41x = 53,731.61 × 21,942.39
  4. Step 4: Simplify right side
    38,936.41x = 1,178,999,832.24
  5. Step 5: Solve for x
    x = 1,178,999,832.24/38,936.41
  6. Step 6: Final answer
    x = 30,280.14

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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.