Home / 41,905.20-62,878.28-19,720.80

Finding the Fourth Proportional to 41,905.20, 62,878.28 and 19,720.80

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Solution

The fourth proportional to 41,905.20, 62,878.28 and 19,720.80 is: 29,590.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,905.20 : 62,878.28 = 19,720.80 : x
  2. Step 2: Convert to fraction form
    41,905.20/62,878.28 = 19,720.80/x
  3. Step 3: Cross multiply
    41,905.20x = 62,878.28 × 19,720.80
  4. Step 4: Simplify right side
    41,905.20x = 1,240,009,984.22
  5. Step 5: Solve for x
    x = 1,240,009,984.22/41,905.20
  6. Step 6: Final answer
    x = 29,590.84

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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.