Home / 38,935.55-53,727.41-21,936.99

Finding the Fourth Proportional to 38,935.55, 53,727.41 and 21,936.99

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Solution

The fourth proportional to 38,935.55, 53,727.41 and 21,936.99 is: 30,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,935.55 : 53,727.41 = 21,936.99 : x
  2. Step 2: Convert to fraction form
    38,935.55/53,727.41 = 21,936.99/x
  3. Step 3: Cross multiply
    38,935.55x = 53,727.41 × 21,936.99
  4. Step 4: Simplify right side
    38,935.55x = 1,178,617,912.22
  5. Step 5: Solve for x
    x = 1,178,617,912.22/38,935.55
  6. Step 6: Final answer
    x = 30,270.99

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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.