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Finding the Fourth Proportional to 37,657.60, 51,967.56 and 20,890.60

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Solution

The fourth proportional to 37,657.60, 51,967.56 and 20,890.60 is: 28,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,657.60 : 51,967.56 = 20,890.60 : x
  2. Step 2: Convert to fraction form
    37,657.60/51,967.56 = 20,890.60/x
  3. Step 3: Cross multiply
    37,657.60x = 51,967.56 × 20,890.60
  4. Step 4: Simplify right side
    37,657.60x = 1,085,633,508.94
  5. Step 5: Solve for x
    x = 1,085,633,508.94/37,657.60
  6. Step 6: Final answer
    x = 28,829.07

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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.