Home / 20,181.15-27,815.00-19,014.75

Finding the Fourth Proportional to 20,181.15, 27,815.00 and 19,014.75

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Solution

The fourth proportional to 20,181.15, 27,815.00 and 19,014.75 is: 26,207.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.15 : 27,815.00 = 19,014.75 : x
  2. Step 2: Convert to fraction form
    20,181.15/27,815.00 = 19,014.75/x
  3. Step 3: Cross multiply
    20,181.15x = 27,815.00 × 19,014.75
  4. Step 4: Simplify right side
    20,181.15x = 528,895,176.18
  5. Step 5: Solve for x
    x = 528,895,176.18/20,181.15
  6. Step 6: Final answer
    x = 26,207.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.