Home / 28,854.64-39,819-16,283.44

Finding the Fourth Proportional to 28,854.64, 39,819 and 16,283.44

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Solution

The fourth proportional to 28,854.64, 39,819 and 16,283.44 is: 22,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.64 : 39,819 = 16,283.44 : x
  2. Step 2: Convert to fraction form
    28,854.64/39,819 = 16,283.44/x
  3. Step 3: Cross multiply
    28,854.64x = 39,819 × 16,283.44
  4. Step 4: Simplify right side
    28,854.64x = 648,390,297.36
  5. Step 5: Solve for x
    x = 648,390,297.36/28,854.64
  6. Step 6: Final answer
    x = 22,470.92

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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.