Home / 20,172.24-30,265.92-9,075.60

Finding the Fourth Proportional to 20,172.24, 30,265.92 and 9,075.60

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Solution

The fourth proportional to 20,172.24, 30,265.92 and 9,075.60 is: 13,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.24 : 30,265.92 = 9,075.60 : x
  2. Step 2: Convert to fraction form
    20,172.24/30,265.92 = 9,075.60/x
  3. Step 3: Cross multiply
    20,172.24x = 30,265.92 × 9,075.60
  4. Step 4: Simplify right side
    20,172.24x = 274,681,383.55
  5. Step 5: Solve for x
    x = 274,681,383.55/20,172.24
  6. Step 6: Final answer
    x = 13,616.80

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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.