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Finding the Fourth Proportional to 29,553.54, 40,768.02 and 19,980.83

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Solution

The fourth proportional to 29,553.54, 40,768.02 and 19,980.83 is: 27,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,553.54 : 40,768.02 = 19,980.83 : x
  2. Step 2: Convert to fraction form
    29,553.54/40,768.02 = 19,980.83/x
  3. Step 3: Cross multiply
    29,553.54x = 40,768.02 × 19,980.83
  4. Step 4: Simplify right side
    29,553.54x = 814,578,673.22
  5. Step 5: Solve for x
    x = 814,578,673.22/29,553.54
  6. Step 6: Final answer
    x = 27,562.81

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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.