Home / 41,940.48-62,820-19,720.56

Finding the Fourth Proportional to 41,940.48, 62,820 and 19,720.56

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Solution

The fourth proportional to 41,940.48, 62,820 and 19,720.56 is: 29,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,940.48 : 62,820 = 19,720.56 : x
  2. Step 2: Convert to fraction form
    41,940.48/62,820 = 19,720.56/x
  3. Step 3: Cross multiply
    41,940.48x = 62,820 × 19,720.56
  4. Step 4: Simplify right side
    41,940.48x = 1,238,845,579.20
  5. Step 5: Solve for x
    x = 1,238,845,579.20/41,940.48
  6. Step 6: Final answer
    x = 29,538.18

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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.