Home / 37,687.56-56,478.55-28,321.60

Finding the Fourth Proportional to 37,687.56, 56,478.55 and 28,321.60

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Solution

The fourth proportional to 37,687.56, 56,478.55 and 28,321.60 is: 42,442.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,687.56 : 56,478.55 = 28,321.60 : x
  2. Step 2: Convert to fraction form
    37,687.56/56,478.55 = 28,321.60/x
  3. Step 3: Cross multiply
    37,687.56x = 56,478.55 × 28,321.60
  4. Step 4: Simplify right side
    37,687.56x = 1,599,562,901.68
  5. Step 5: Solve for x
    x = 1,599,562,901.68/37,687.56
  6. Step 6: Final answer
    x = 42,442.73

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1.5x scale

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.