Home / 30,206.81-45,299.43-11,481.86

Finding the Fourth Proportional to 30,206.81, 45,299.43 and 11,481.86

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Solution

The fourth proportional to 30,206.81, 45,299.43 and 11,481.86 is: 17,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.81 : 45,299.43 = 11,481.86 : x
  2. Step 2: Convert to fraction form
    30,206.81/45,299.43 = 11,481.86/x
  3. Step 3: Cross multiply
    30,206.81x = 45,299.43 × 11,481.86
  4. Step 4: Simplify right side
    30,206.81x = 520,121,713.34
  5. Step 5: Solve for x
    x = 520,121,713.34/30,206.81
  6. Step 6: Final answer
    x = 17,218.69

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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.