Home / 37,723.92-56,530.50-18,978.20

Finding the Fourth Proportional to 37,723.92, 56,530.50 and 18,978.20

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Solution

The fourth proportional to 37,723.92, 56,530.50 and 18,978.20 is: 28,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,723.92 : 56,530.50 = 18,978.20 : x
  2. Step 2: Convert to fraction form
    37,723.92/56,530.50 = 18,978.20/x
  3. Step 3: Cross multiply
    37,723.92x = 56,530.50 × 18,978.20
  4. Step 4: Simplify right side
    37,723.92x = 1,072,846,852.45
  5. Step 5: Solve for x
    x = 1,072,846,852.45/37,723.92
  6. Step 6: Final answer
    x = 28,439.43

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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.