Home / 39,188.18-54,080.09-21,283.54

Finding the Fourth Proportional to 39,188.18, 54,080.09 and 21,283.54

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Solution

The fourth proportional to 39,188.18, 54,080.09 and 21,283.54 is: 29,371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.18 : 54,080.09 = 21,283.54 : x
  2. Step 2: Convert to fraction form
    39,188.18/54,080.09 = 21,283.54/x
  3. Step 3: Cross multiply
    39,188.18x = 54,080.09 × 21,283.54
  4. Step 4: Simplify right side
    39,188.18x = 1,151,015,596.91
  5. Step 5: Solve for x
    x = 1,151,015,596.91/39,188.18
  6. Step 6: Final answer
    x = 29,371.50

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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.