Home / 27,405.30-41,124.15-19,991.10

Finding the Fourth Proportional to 27,405.30, 41,124.15 and 19,991.10

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Solution

The fourth proportional to 27,405.30, 41,124.15 and 19,991.10 is: 29,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,405.30 : 41,124.15 = 19,991.10 : x
  2. Step 2: Convert to fraction form
    27,405.30/41,124.15 = 19,991.10/x
  3. Step 3: Cross multiply
    27,405.30x = 41,124.15 × 19,991.10
  4. Step 4: Simplify right side
    27,405.30x = 822,116,995.07
  5. Step 5: Solve for x
    x = 822,116,995.07/27,405.30
  6. Step 6: Final answer
    x = 29,998.47

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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.