Home / 39,372.72-54,333.37-21,468.08

Finding the Fourth Proportional to 39,372.72, 54,333.37 and 21,468.08

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Solution

The fourth proportional to 39,372.72, 54,333.37 and 21,468.08 is: 29,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,372.72 : 54,333.37 = 21,468.08 : x
  2. Step 2: Convert to fraction form
    39,372.72/54,333.37 = 21,468.08/x
  3. Step 3: Cross multiply
    39,372.72x = 54,333.37 × 21,468.08
  4. Step 4: Simplify right side
    39,372.72x = 1,166,433,133.83
  5. Step 5: Solve for x
    x = 1,166,433,133.83/39,372.72
  6. Step 6: Final answer
    x = 29,625.41

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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.