Home / 19,530.69-29,238.44-12,111.27

Finding the Fourth Proportional to 19,530.69, 29,238.44 and 12,111.27

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Solution

The fourth proportional to 19,530.69, 29,238.44 and 12,111.27 is: 18,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.69 : 29,238.44 = 12,111.27 : x
  2. Step 2: Convert to fraction form
    19,530.69/29,238.44 = 12,111.27/x
  3. Step 3: Cross multiply
    19,530.69x = 29,238.44 × 12,111.27
  4. Step 4: Simplify right side
    19,530.69x = 354,114,580.66
  5. Step 5: Solve for x
    x = 354,114,580.66/19,530.69
  6. Step 6: Final answer
    x = 18,131.19

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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.