Home / 20,603.75-30,887.30-7,453.20

Finding the Fourth Proportional to 20,603.75, 30,887.30 and 7,453.20

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Solution

The fourth proportional to 20,603.75, 30,887.30 and 7,453.20 is: 11,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.75 : 30,887.30 = 7,453.20 : x
  2. Step 2: Convert to fraction form
    20,603.75/30,887.30 = 7,453.20/x
  3. Step 3: Cross multiply
    20,603.75x = 30,887.30 × 7,453.20
  4. Step 4: Simplify right side
    20,603.75x = 230,209,224.36
  5. Step 5: Solve for x
    x = 230,209,224.36/20,603.75
  6. Step 6: Final answer
    x = 11,173.17

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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.