Home / 39,137.72-54,010.07-21,232.72

Finding the Fourth Proportional to 39,137.72, 54,010.07 and 21,232.72

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Solution

The fourth proportional to 39,137.72, 54,010.07 and 21,232.72 is: 29,301.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.72 : 54,010.07 = 21,232.72 : x
  2. Step 2: Convert to fraction form
    39,137.72/54,010.07 = 21,232.72/x
  3. Step 3: Cross multiply
    39,137.72x = 54,010.07 × 21,232.72
  4. Step 4: Simplify right side
    39,137.72x = 1,146,780,351.03
  5. Step 5: Solve for x
    x = 1,146,780,351.03/39,137.72
  6. Step 6: Final answer
    x = 29,301.16

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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.