Home / 29,145.12-43,643.52-19,269.60

Finding the Fourth Proportional to 29,145.12, 43,643.52 and 19,269.60

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Solution

The fourth proportional to 29,145.12, 43,643.52 and 19,269.60 is: 28,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.12 : 43,643.52 = 19,269.60 : x
  2. Step 2: Convert to fraction form
    29,145.12/43,643.52 = 19,269.60/x
  3. Step 3: Cross multiply
    29,145.12x = 43,643.52 × 19,269.60
  4. Step 4: Simplify right side
    29,145.12x = 840,993,172.99
  5. Step 5: Solve for x
    x = 840,993,172.99/29,145.12
  6. Step 6: Final answer
    x = 28,855.37

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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.