Home / 18,679.66-28,019.44-5,533.05

Finding the Fourth Proportional to 18,679.66, 28,019.44 and 5,533.05

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Solution

The fourth proportional to 18,679.66, 28,019.44 and 5,533.05 is: 8,299.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679.66 : 28,019.44 = 5,533.05 : x
  2. Step 2: Convert to fraction form
    18,679.66/28,019.44 = 5,533.05/x
  3. Step 3: Cross multiply
    18,679.66x = 28,019.44 × 5,533.05
  4. Step 4: Simplify right side
    18,679.66x = 155,033,043.36
  5. Step 5: Solve for x
    x = 155,033,043.36/18,679.66
  6. Step 6: Final answer
    x = 8,299.57

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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.