Home / 30,205.81-45,297.93-11,480.86

Finding the Fourth Proportional to 30,205.81, 45,297.93 and 11,480.86

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Solution

The fourth proportional to 30,205.81, 45,297.93 and 11,480.86 is: 17,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.81 : 45,297.93 = 11,480.86 : x
  2. Step 2: Convert to fraction form
    30,205.81/45,297.93 = 11,480.86/x
  3. Step 3: Cross multiply
    30,205.81x = 45,297.93 × 11,480.86
  4. Step 4: Simplify right side
    30,205.81x = 520,059,419.70
  5. Step 5: Solve for x
    x = 520,059,419.70/30,205.81
  6. Step 6: Final answer
    x = 17,217.20

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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.