Home / 38,454.36-57,632.94-20,640.84

Finding the Fourth Proportional to 38,454.36, 57,632.94 and 20,640.84

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Solution

The fourth proportional to 38,454.36, 57,632.94 and 20,640.84 is: 30,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.36 : 57,632.94 = 20,640.84 : x
  2. Step 2: Convert to fraction form
    38,454.36/57,632.94 = 20,640.84/x
  3. Step 3: Cross multiply
    38,454.36x = 57,632.94 × 20,640.84
  4. Step 4: Simplify right side
    38,454.36x = 1,189,592,293.27
  5. Step 5: Solve for x
    x = 1,189,592,293.27/38,454.36
  6. Step 6: Final answer
    x = 30,935.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.