Home / 37,957.28-56,930.07-12,991.60

Finding the Fourth Proportional to 37,957.28, 56,930.07 and 12,991.60

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Solution

The fourth proportional to 37,957.28, 56,930.07 and 12,991.60 is: 19,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,957.28 : 56,930.07 = 12,991.60 : x
  2. Step 2: Convert to fraction form
    37,957.28/56,930.07 = 12,991.60/x
  3. Step 3: Cross multiply
    37,957.28x = 56,930.07 × 12,991.60
  4. Step 4: Simplify right side
    37,957.28x = 739,612,555.09
  5. Step 5: Solve for x
    x = 739,612,555.09/37,957.28
  6. Step 6: Final answer
    x = 19,485.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.