Home / 39,189.46-54,081.26-21,284.32

Finding the Fourth Proportional to 39,189.46, 54,081.26 and 21,284.32

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Solution

The fourth proportional to 39,189.46, 54,081.26 and 21,284.32 is: 29,372.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,189.46 : 54,081.26 = 21,284.32 : x
  2. Step 2: Convert to fraction form
    39,189.46/54,081.26 = 21,284.32/x
  3. Step 3: Cross multiply
    39,189.46x = 54,081.26 × 21,284.32
  4. Step 4: Simplify right side
    39,189.46x = 1,151,082,843.84
  5. Step 5: Solve for x
    x = 1,151,082,843.84/39,189.46
  6. Step 6: Final answer
    x = 29,372.26

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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.