Home / 39,896.73-55,056.74-21,747.62

Finding the Fourth Proportional to 39,896.73, 55,056.74 and 21,747.62

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Solution

The fourth proportional to 39,896.73, 55,056.74 and 21,747.62 is: 30,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,896.73 : 55,056.74 = 21,747.62 : x
  2. Step 2: Convert to fraction form
    39,896.73/55,056.74 = 21,747.62/x
  3. Step 3: Cross multiply
    39,896.73x = 55,056.74 × 21,747.62
  4. Step 4: Simplify right side
    39,896.73x = 1,197,352,675.94
  5. Step 5: Solve for x
    x = 1,197,352,675.94/39,896.73
  6. Step 6: Final answer
    x = 30,011.30

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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.