Home / 30,198.96-45,277.77-15,379.20

Finding the Fourth Proportional to 30,198.96, 45,277.77 and 15,379.20

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Solution

The fourth proportional to 30,198.96, 45,277.77 and 15,379.20 is: 23,058.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.96 : 45,277.77 = 15,379.20 : x
  2. Step 2: Convert to fraction form
    30,198.96/45,277.77 = 15,379.20/x
  3. Step 3: Cross multiply
    30,198.96x = 45,277.77 × 15,379.20
  4. Step 4: Simplify right side
    30,198.96x = 696,335,880.38
  5. Step 5: Solve for x
    x = 696,335,880.38/30,198.96
  6. Step 6: Final answer
    x = 23,058.27

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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.