Home / 38,395.54-52,986.38-21,399.30

Finding the Fourth Proportional to 38,395.54, 52,986.38 and 21,399.30

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Solution

The fourth proportional to 38,395.54, 52,986.38 and 21,399.30 is: 29,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,395.54 : 52,986.38 = 21,399.30 : x
  2. Step 2: Convert to fraction form
    38,395.54/52,986.38 = 21,399.30/x
  3. Step 3: Cross multiply
    38,395.54x = 52,986.38 × 21,399.30
  4. Step 4: Simplify right side
    38,395.54x = 1,133,871,441.53
  5. Step 5: Solve for x
    x = 1,133,871,441.53/38,395.54
  6. Step 6: Final answer
    x = 29,531.33

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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.