Home / 31,749.57-43,832.34-21,692.61

Finding the Fourth Proportional to 31,749.57, 43,832.34 and 21,692.61

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Solution

The fourth proportional to 31,749.57, 43,832.34 and 21,692.61 is: 29,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.57 : 43,832.34 = 21,692.61 : x
  2. Step 2: Convert to fraction form
    31,749.57/43,832.34 = 21,692.61/x
  3. Step 3: Cross multiply
    31,749.57x = 43,832.34 × 21,692.61
  4. Step 4: Simplify right side
    31,749.57x = 950,837,857.01
  5. Step 5: Solve for x
    x = 950,837,857.01/31,749.57
  6. Step 6: Final answer
    x = 29,948.05

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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.