Home / 39,165.72-54,048.31-21,260.34

Finding the Fourth Proportional to 39,165.72, 54,048.31 and 21,260.34

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Solution

The fourth proportional to 39,165.72, 54,048.31 and 21,260.34 is: 29,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165.72 : 54,048.31 = 21,260.34 : x
  2. Step 2: Convert to fraction form
    39,165.72/54,048.31 = 21,260.34/x
  3. Step 3: Cross multiply
    39,165.72x = 54,048.31 × 21,260.34
  4. Step 4: Simplify right side
    39,165.72x = 1,149,085,447.03
  5. Step 5: Solve for x
    x = 1,149,085,447.03/39,165.72
  6. Step 6: Final answer
    x = 29,339.06

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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.