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Finding the Fourth Proportional to 37,646.50, 51,952.26 and 20,879.50

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Solution

The fourth proportional to 37,646.50, 51,952.26 and 20,879.50 is: 28,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,646.50 : 51,952.26 = 20,879.50 : x
  2. Step 2: Convert to fraction form
    37,646.50/51,952.26 = 20,879.50/x
  3. Step 3: Cross multiply
    37,646.50x = 51,952.26 × 20,879.50
  4. Step 4: Simplify right side
    37,646.50x = 1,084,737,212.67
  5. Step 5: Solve for x
    x = 1,084,737,212.67/37,646.50
  6. Step 6: Final answer
    x = 28,813.76

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1.5x scale

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.