Home / 30,205.10-45,307.68-11,480.73

Finding the Fourth Proportional to 30,205.10, 45,307.68 and 11,480.73

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Solution

The fourth proportional to 30,205.10, 45,307.68 and 11,480.73 is: 17,221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.10 : 45,307.68 = 11,480.73 : x
  2. Step 2: Convert to fraction form
    30,205.10/45,307.68 = 11,480.73/x
  3. Step 3: Cross multiply
    30,205.10x = 45,307.68 × 11,480.73
  4. Step 4: Simplify right side
    30,205.10x = 520,165,241.01
  5. Step 5: Solve for x
    x = 520,165,241.01/30,205.10
  6. Step 6: Final answer
    x = 17,221.11

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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.