Home / 20,255.75-30,382.33-7,603.01

Finding the Fourth Proportional to 20,255.75, 30,382.33 and 7,603.01

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Solution

The fourth proportional to 20,255.75, 30,382.33 and 7,603.01 is: 11,404.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.75 : 30,382.33 = 7,603.01 : x
  2. Step 2: Convert to fraction form
    20,255.75/30,382.33 = 7,603.01/x
  3. Step 3: Cross multiply
    20,255.75x = 30,382.33 × 7,603.01
  4. Step 4: Simplify right side
    20,255.75x = 230,997,158.81
  5. Step 5: Solve for x
    x = 230,997,158.81/20,255.75
  6. Step 6: Final answer
    x = 11,404.03

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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.