Home / 30,198.28-41,678.40-28,869.52

Finding the Fourth Proportional to 30,198.28, 41,678.40 and 28,869.52

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Solution

The fourth proportional to 30,198.28, 41,678.40 and 28,869.52 is: 39,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.28 : 41,678.40 = 28,869.52 : x
  2. Step 2: Convert to fraction form
    30,198.28/41,678.40 = 28,869.52/x
  3. Step 3: Cross multiply
    30,198.28x = 41,678.40 × 28,869.52
  4. Step 4: Simplify right side
    30,198.28x = 1,203,235,402.37
  5. Step 5: Solve for x
    x = 1,203,235,402.37/30,198.28
  6. Step 6: Final answer
    x = 39,844.50

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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.