Home / 19,405.44-28,976.60-15,411.87

Finding the Fourth Proportional to 19,405.44, 28,976.60 and 15,411.87

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Solution

The fourth proportional to 19,405.44, 28,976.60 and 15,411.87 is: 23,013.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.44 : 28,976.60 = 15,411.87 : x
  2. Step 2: Convert to fraction form
    19,405.44/28,976.60 = 15,411.87/x
  3. Step 3: Cross multiply
    19,405.44x = 28,976.60 × 15,411.87
  4. Step 4: Simplify right side
    19,405.44x = 446,583,630.77
  5. Step 5: Solve for x
    x = 446,583,630.77/19,405.44
  6. Step 6: Final answer
    x = 23,013.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.