Home / 39,187.46-54,078.50-21,282.32

Finding the Fourth Proportional to 39,187.46, 54,078.50 and 21,282.32

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Solution

The fourth proportional to 39,187.46, 54,078.50 and 21,282.32 is: 29,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.46 : 54,078.50 = 21,282.32 : x
  2. Step 2: Convert to fraction form
    39,187.46/54,078.50 = 21,282.32/x
  3. Step 3: Cross multiply
    39,187.46x = 54,078.50 × 21,282.32
  4. Step 4: Simplify right side
    39,187.46x = 1,150,915,942.12
  5. Step 5: Solve for x
    x = 1,150,915,942.12/39,187.46
  6. Step 6: Final answer
    x = 29,369.50

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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.