Home / 18,731.70-28,094.45-5,580.99

Finding the Fourth Proportional to 18,731.70, 28,094.45 and 5,580.99

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Solution

The fourth proportional to 18,731.70, 28,094.45 and 5,580.99 is: 8,370.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.70 : 28,094.45 = 5,580.99 : x
  2. Step 2: Convert to fraction form
    18,731.70/28,094.45 = 5,580.99/x
  3. Step 3: Cross multiply
    18,731.70x = 28,094.45 × 5,580.99
  4. Step 4: Simplify right side
    18,731.70x = 156,794,816.60
  5. Step 5: Solve for x
    x = 156,794,816.60/18,731.70
  6. Step 6: Final answer
    x = 8,370.56

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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.