Home / 28,844.61-39,790.13-19,896.54

Finding the Fourth Proportional to 28,844.61, 39,790.13 and 19,896.54

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Solution

The fourth proportional to 28,844.61, 39,790.13 and 19,896.54 is: 27,446.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,844.61 : 39,790.13 = 19,896.54 : x
  2. Step 2: Convert to fraction form
    28,844.61/39,790.13 = 19,896.54/x
  3. Step 3: Cross multiply
    28,844.61x = 39,790.13 × 19,896.54
  4. Step 4: Simplify right side
    28,844.61x = 791,685,913.15
  5. Step 5: Solve for x
    x = 791,685,913.15/28,844.61
  6. Step 6: Final answer
    x = 27,446.58

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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.