Home / 30,298.86-45,433.18-19,197.09

Finding the Fourth Proportional to 30,298.86, 45,433.18 and 19,197.09

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Solution

The fourth proportional to 30,298.86, 45,433.18 and 19,197.09 is: 28,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,298.86 : 45,433.18 = 19,197.09 : x
  2. Step 2: Convert to fraction form
    30,298.86/45,433.18 = 19,197.09/x
  3. Step 3: Cross multiply
    30,298.86x = 45,433.18 × 19,197.09
  4. Step 4: Simplify right side
    30,298.86x = 872,184,845.45
  5. Step 5: Solve for x
    x = 872,184,845.45/30,298.86
  6. Step 6: Final answer
    x = 28,786.06

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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.