Home / 19,336.40-28,943.04-15,396.56

Finding the Fourth Proportional to 19,336.40, 28,943.04 and 15,396.56

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Solution

The fourth proportional to 19,336.40, 28,943.04 and 15,396.56 is: 23,045.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,336.40 : 28,943.04 = 15,396.56 : x
  2. Step 2: Convert to fraction form
    19,336.40/28,943.04 = 15,396.56/x
  3. Step 3: Cross multiply
    19,336.40x = 28,943.04 × 15,396.56
  4. Step 4: Simplify right side
    19,336.40x = 445,623,251.94
  5. Step 5: Solve for x
    x = 445,623,251.94/19,336.40
  6. Step 6: Final answer
    x = 23,045.82

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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.