Home / 31,647.72-43,690.34-29,553.64

Finding the Fourth Proportional to 31,647.72, 43,690.34 and 29,553.64

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Solution

The fourth proportional to 31,647.72, 43,690.34 and 29,553.64 is: 40,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.72 : 43,690.34 = 29,553.64 : x
  2. Step 2: Convert to fraction form
    31,647.72/43,690.34 = 29,553.64/x
  3. Step 3: Cross multiply
    31,647.72x = 43,690.34 × 29,553.64
  4. Step 4: Simplify right side
    31,647.72x = 1,291,208,579.84
  5. Step 5: Solve for x
    x = 1,291,208,579.84/31,647.72
  6. Step 6: Final answer
    x = 40,799.42

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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.