Home / 28,544.80-42,817.20-20,234.20

Finding the Fourth Proportional to 28,544.80, 42,817.20 and 20,234.20

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Solution

The fourth proportional to 28,544.80, 42,817.20 and 20,234.20 is: 30,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.80 : 42,817.20 = 20,234.20 : x
  2. Step 2: Convert to fraction form
    28,544.80/42,817.20 = 20,234.20/x
  3. Step 3: Cross multiply
    28,544.80x = 42,817.20 × 20,234.20
  4. Step 4: Simplify right side
    28,544.80x = 866,371,788.24
  5. Step 5: Solve for x
    x = 866,371,788.24/28,544.80
  6. Step 6: Final answer
    x = 30,351.30

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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.