Home / 19,296.38-28,911.47-12,959.38

Finding the Fourth Proportional to 19,296.38, 28,911.47 and 12,959.38

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Solution

The fourth proportional to 19,296.38, 28,911.47 and 12,959.38 is: 19,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.38 : 28,911.47 = 12,959.38 : x
  2. Step 2: Convert to fraction form
    19,296.38/28,911.47 = 12,959.38/x
  3. Step 3: Cross multiply
    19,296.38x = 28,911.47 × 12,959.38
  4. Step 4: Simplify right side
    19,296.38x = 374,674,726.09
  5. Step 5: Solve for x
    x = 374,674,726.09/19,296.38
  6. Step 6: Final answer
    x = 19,416.84

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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.