Home / 31,692.78-43,736.63-18,261.77

Finding the Fourth Proportional to 31,692.78, 43,736.63 and 18,261.77

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Solution

The fourth proportional to 31,692.78, 43,736.63 and 18,261.77 is: 25,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.78 : 43,736.63 = 18,261.77 : x
  2. Step 2: Convert to fraction form
    31,692.78/43,736.63 = 18,261.77/x
  3. Step 3: Cross multiply
    31,692.78x = 43,736.63 × 18,261.77
  4. Step 4: Simplify right side
    31,692.78x = 798,707,967.64
  5. Step 5: Solve for x
    x = 798,707,967.64/31,692.78
  6. Step 6: Final answer
    x = 25,201.57

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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.