Home / 18,680.55-28,020.95-5,533.03

Finding the Fourth Proportional to 18,680.55, 28,020.95 and 5,533.03

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Solution

The fourth proportional to 18,680.55, 28,020.95 and 5,533.03 is: 8,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.55 : 28,020.95 = 5,533.03 : x
  2. Step 2: Convert to fraction form
    18,680.55/28,020.95 = 5,533.03/x
  3. Step 3: Cross multiply
    18,680.55x = 28,020.95 × 5,533.03
  4. Step 4: Simplify right side
    18,680.55x = 155,040,756.98
  5. Step 5: Solve for x
    x = 155,040,756.98/18,680.55
  6. Step 6: Final answer
    x = 8,299.58

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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.