Home / 30,290.12-45,436.80-9,228.56

Finding the Fourth Proportional to 30,290.12, 45,436.80 and 9,228.56

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Solution

The fourth proportional to 30,290.12, 45,436.80 and 9,228.56 is: 13,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.12 : 45,436.80 = 9,228.56 : x
  2. Step 2: Convert to fraction form
    30,290.12/45,436.80 = 9,228.56/x
  3. Step 3: Cross multiply
    30,290.12x = 45,436.80 × 9,228.56
  4. Step 4: Simplify right side
    30,290.12x = 419,316,235.01
  5. Step 5: Solve for x
    x = 419,316,235.01/30,290.12
  6. Step 6: Final answer
    x = 13,843.33

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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.