Home / 42,240.69-63,367.11-13,768.08

Finding the Fourth Proportional to 42,240.69, 63,367.11 and 13,768.08

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Solution

The fourth proportional to 42,240.69, 63,367.11 and 13,768.08 is: 20,654.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,240.69 : 63,367.11 = 13,768.08 : x
  2. Step 2: Convert to fraction form
    42,240.69/63,367.11 = 13,768.08/x
  3. Step 3: Cross multiply
    42,240.69x = 63,367.11 × 13,768.08
  4. Step 4: Simplify right side
    42,240.69x = 872,443,202.22
  5. Step 5: Solve for x
    x = 872,443,202.22/42,240.69
  6. Step 6: Final answer
    x = 20,654.09

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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.