Home / 18,881.50-28,325.49-5,735.20

Finding the Fourth Proportional to 18,881.50, 28,325.49 and 5,735.20

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Solution

The fourth proportional to 18,881.50, 28,325.49 and 5,735.20 is: 8,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.50 : 28,325.49 = 5,735.20 : x
  2. Step 2: Convert to fraction form
    18,881.50/28,325.49 = 5,735.20/x
  3. Step 3: Cross multiply
    18,881.50x = 28,325.49 × 5,735.20
  4. Step 4: Simplify right side
    18,881.50x = 162,452,350.25
  5. Step 5: Solve for x
    x = 162,452,350.25/18,881.50
  6. Step 6: Final answer
    x = 8,603.78

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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.