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Finding the Fourth Proportional to 28,752, 39,673.44 and 16,176.48

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Solution

The fourth proportional to 28,752, 39,673.44 and 16,176.48 is: 22,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752 : 39,673.44 = 16,176.48 : x
  2. Step 2: Convert to fraction form
    28,752/39,673.44 = 16,176.48/x
  3. Step 3: Cross multiply
    28,752x = 39,673.44 × 16,176.48
  4. Step 4: Simplify right side
    28,752x = 641,776,608.69
  5. Step 5: Solve for x
    x = 641,776,608.69/28,752
  6. Step 6: Final answer
    x = 22,321.11

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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.