Home / 19,646.40-27,104-12,090.44

Finding the Fourth Proportional to 19,646.40, 27,104 and 12,090.44

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Solution

The fourth proportional to 19,646.40, 27,104 and 12,090.44 is: 16,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646.40 : 27,104 = 12,090.44 : x
  2. Step 2: Convert to fraction form
    19,646.40/27,104 = 12,090.44/x
  3. Step 3: Cross multiply
    19,646.40x = 27,104 × 12,090.44
  4. Step 4: Simplify right side
    19,646.40x = 327,699,285.76
  5. Step 5: Solve for x
    x = 327,699,285.76/19,646.40
  6. Step 6: Final answer
    x = 16,679.86

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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.