Home / 38,163.98-52,664.45-21,168.90

Finding the Fourth Proportional to 38,163.98, 52,664.45 and 21,168.90

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Solution

The fourth proportional to 38,163.98, 52,664.45 and 21,168.90 is: 29,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,163.98 : 52,664.45 = 21,168.90 : x
  2. Step 2: Convert to fraction form
    38,163.98/52,664.45 = 21,168.90/x
  3. Step 3: Cross multiply
    38,163.98x = 52,664.45 × 21,168.90
  4. Step 4: Simplify right side
    38,163.98x = 1,114,848,369.76
  5. Step 5: Solve for x
    x = 1,114,848,369.76/38,163.98
  6. Step 6: Final answer
    x = 29,212.06

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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.