Home / 19,405.86-26,779.77-11,021.82

Finding the Fourth Proportional to 19,405.86, 26,779.77 and 11,021.82

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Solution

The fourth proportional to 19,405.86, 26,779.77 and 11,021.82 is: 15,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.86 : 26,779.77 = 11,021.82 : x
  2. Step 2: Convert to fraction form
    19,405.86/26,779.77 = 11,021.82/x
  3. Step 3: Cross multiply
    19,405.86x = 26,779.77 × 11,021.82
  4. Step 4: Simplify right side
    19,405.86x = 295,161,804.58
  5. Step 5: Solve for x
    x = 295,161,804.58/19,405.86
  6. Step 6: Final answer
    x = 15,209.93

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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.