Home / 19,128.70-28,683.15-5,977.54

Finding the Fourth Proportional to 19,128.70, 28,683.15 and 5,977.54

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Solution

The fourth proportional to 19,128.70, 28,683.15 and 5,977.54 is: 8,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.70 : 28,683.15 = 5,977.54 : x
  2. Step 2: Convert to fraction form
    19,128.70/28,683.15 = 5,977.54/x
  3. Step 3: Cross multiply
    19,128.70x = 28,683.15 × 5,977.54
  4. Step 4: Simplify right side
    19,128.70x = 171,454,676.45
  5. Step 5: Solve for x
    x = 171,454,676.45/19,128.70
  6. Step 6: Final answer
    x = 8,963.22

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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.