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Finding the Fourth Proportional to 37,875.52, 52,270.52 and 20,879.76

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Solution

The fourth proportional to 37,875.52, 52,270.52 and 20,879.76 is: 28,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,875.52 : 52,270.52 = 20,879.76 : x
  2. Step 2: Convert to fraction form
    37,875.52/52,270.52 = 20,879.76/x
  3. Step 3: Cross multiply
    37,875.52x = 52,270.52 × 20,879.76
  4. Step 4: Simplify right side
    37,875.52x = 1,091,395,912.68
  5. Step 5: Solve for x
    x = 1,091,395,912.68/37,875.52
  6. Step 6: Final answer
    x = 28,815.34

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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.