Home / 27,784.80-41,696.40-19,999.20

Finding the Fourth Proportional to 27,784.80, 41,696.40 and 19,999.20

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Solution

The fourth proportional to 27,784.80, 41,696.40 and 19,999.20 is: 30,012.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.80 : 41,696.40 = 19,999.20 : x
  2. Step 2: Convert to fraction form
    27,784.80/41,696.40 = 19,999.20/x
  3. Step 3: Cross multiply
    27,784.80x = 41,696.40 × 19,999.20
  4. Step 4: Simplify right side
    27,784.80x = 833,894,642.88
  5. Step 5: Solve for x
    x = 833,894,642.88/27,784.80
  6. Step 6: Final answer
    x = 30,012.62

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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.