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Finding the Fourth Proportional to 37,646, 51,953.12 and 20,879.04

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Solution

The fourth proportional to 37,646, 51,953.12 and 20,879.04 is: 28,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,646 : 51,953.12 = 20,879.04 : x
  2. Step 2: Convert to fraction form
    37,646/51,953.12 = 20,879.04/x
  3. Step 3: Cross multiply
    37,646x = 51,953.12 × 20,879.04
  4. Step 4: Simplify right side
    37,646x = 1,084,731,270.60
  5. Step 5: Solve for x
    x = 1,084,731,270.60/37,646
  6. Step 6: Final answer
    x = 28,813.98

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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.