Home / 42,493.53-63,740.25-20,239.41

Finding the Fourth Proportional to 42,493.53, 63,740.25 and 20,239.41

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Solution

The fourth proportional to 42,493.53, 63,740.25 and 20,239.41 is: 30,359.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,493.53 : 63,740.25 = 20,239.41 : x
  2. Step 2: Convert to fraction form
    42,493.53/63,740.25 = 20,239.41/x
  3. Step 3: Cross multiply
    42,493.53x = 63,740.25 × 20,239.41
  4. Step 4: Simplify right side
    42,493.53x = 1,290,065,053.25
  5. Step 5: Solve for x
    x = 1,290,065,053.25/42,493.53
  6. Step 6: Final answer
    x = 30,359.09

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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.