Home / 18,692.39-28,033.81-5,541.70

Finding the Fourth Proportional to 18,692.39, 28,033.81 and 5,541.70

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Solution

The fourth proportional to 18,692.39, 28,033.81 and 5,541.70 is: 8,311.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.39 : 28,033.81 = 5,541.70 : x
  2. Step 2: Convert to fraction form
    18,692.39/28,033.81 = 5,541.70/x
  3. Step 3: Cross multiply
    18,692.39x = 28,033.81 × 5,541.70
  4. Step 4: Simplify right side
    18,692.39x = 155,354,964.88
  5. Step 5: Solve for x
    x = 155,354,964.88/18,692.39
  6. Step 6: Final answer
    x = 8,311.13

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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.