Home / 41,009.12-61,511.84-11,428.48

Finding the Fourth Proportional to 41,009.12, 61,511.84 and 11,428.48

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Solution

The fourth proportional to 41,009.12, 61,511.84 and 11,428.48 is: 17,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,009.12 : 61,511.84 = 11,428.48 : x
  2. Step 2: Convert to fraction form
    41,009.12/61,511.84 = 11,428.48/x
  3. Step 3: Cross multiply
    41,009.12x = 61,511.84 × 11,428.48
  4. Step 4: Simplify right side
    41,009.12x = 702,986,833.20
  5. Step 5: Solve for x
    x = 702,986,833.20/41,009.12
  6. Step 6: Final answer
    x = 17,142.21

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1.5x scale

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.