Home / 42,213.74-63,342.41-18,537.90

Finding the Fourth Proportional to 42,213.74, 63,342.41 and 18,537.90

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Solution

The fourth proportional to 42,213.74, 63,342.41 and 18,537.90 is: 27,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,213.74 : 63,342.41 = 18,537.90 : x
  2. Step 2: Convert to fraction form
    42,213.74/63,342.41 = 18,537.90/x
  3. Step 3: Cross multiply
    42,213.74x = 63,342.41 × 18,537.90
  4. Step 4: Simplify right side
    42,213.74x = 1,174,235,316.65
  5. Step 5: Solve for x
    x = 1,174,235,316.65/42,213.74
  6. Step 6: Final answer
    x = 27,816.42

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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.