Home / 20,170.60-30,234.30-9,075.40

Finding the Fourth Proportional to 20,170.60, 30,234.30 and 9,075.40

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Solution

The fourth proportional to 20,170.60, 30,234.30 and 9,075.40 is: 13,603.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.60 : 30,234.30 = 9,075.40 : x
  2. Step 2: Convert to fraction form
    20,170.60/30,234.30 = 9,075.40/x
  3. Step 3: Cross multiply
    20,170.60x = 30,234.30 × 9,075.40
  4. Step 4: Simplify right side
    20,170.60x = 274,388,366.22
  5. Step 5: Solve for x
    x = 274,388,366.22/20,170.60
  6. Step 6: Final answer
    x = 13,603.38

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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.