Home / 42,825.82-64,235.49-13,243.84

Finding the Fourth Proportional to 42,825.82, 64,235.49 and 13,243.84

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Solution

The fourth proportional to 42,825.82, 64,235.49 and 13,243.84 is: 19,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,825.82 : 64,235.49 = 13,243.84 : x
  2. Step 2: Convert to fraction form
    42,825.82/64,235.49 = 13,243.84/x
  3. Step 3: Cross multiply
    42,825.82x = 64,235.49 × 13,243.84
  4. Step 4: Simplify right side
    42,825.82x = 850,724,551.88
  5. Step 5: Solve for x
    x = 850,724,551.88/42,825.82
  6. Step 6: Final answer
    x = 19,864.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.