Home / 21,261.82-31,885.93-7,027.64

Finding the Fourth Proportional to 21,261.82, 31,885.93 and 7,027.64

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Solution

The fourth proportional to 21,261.82, 31,885.93 and 7,027.64 is: 10,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.82 : 31,885.93 = 7,027.64 : x
  2. Step 2: Convert to fraction form
    21,261.82/31,885.93 = 7,027.64/x
  3. Step 3: Cross multiply
    21,261.82x = 31,885.93 × 7,027.64
  4. Step 4: Simplify right side
    21,261.82x = 224,082,837.11
  5. Step 5: Solve for x
    x = 224,082,837.11/21,261.82
  6. Step 6: Final answer
    x = 10,539.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.