Home / 42,171.48-63,257.20-17,223.28

Finding the Fourth Proportional to 42,171.48, 63,257.20 and 17,223.28

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Solution

The fourth proportional to 42,171.48, 63,257.20 and 17,223.28 is: 25,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,171.48 : 63,257.20 = 17,223.28 : x
  2. Step 2: Convert to fraction form
    42,171.48/63,257.20 = 17,223.28/x
  3. Step 3: Cross multiply
    42,171.48x = 63,257.20 × 17,223.28
  4. Step 4: Simplify right side
    42,171.48x = 1,089,496,467.62
  5. Step 5: Solve for x
    x = 1,089,496,467.62/42,171.48
  6. Step 6: Final answer
    x = 25,834.91

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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.