Home / 19,291.52-28,907.36-13,379.94

Finding the Fourth Proportional to 19,291.52, 28,907.36 and 13,379.94

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Solution

The fourth proportional to 19,291.52, 28,907.36 and 13,379.94 is: 20,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.52 : 28,907.36 = 13,379.94 : x
  2. Step 2: Convert to fraction form
    19,291.52/28,907.36 = 13,379.94/x
  3. Step 3: Cross multiply
    19,291.52x = 28,907.36 × 13,379.94
  4. Step 4: Simplify right side
    19,291.52x = 386,778,742.36
  5. Step 5: Solve for x
    x = 386,778,742.36/19,291.52
  6. Step 6: Final answer
    x = 20,049.16

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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.