Home / 30,065.30-45,063.09-11,333.35

Finding the Fourth Proportional to 30,065.30, 45,063.09 and 11,333.35

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Solution

The fourth proportional to 30,065.30, 45,063.09 and 11,333.35 is: 16,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,065.30 : 45,063.09 = 11,333.35 : x
  2. Step 2: Convert to fraction form
    30,065.30/45,063.09 = 11,333.35/x
  3. Step 3: Cross multiply
    30,065.30x = 45,063.09 × 11,333.35
  4. Step 4: Simplify right side
    30,065.30x = 510,715,771.05
  5. Step 5: Solve for x
    x = 510,715,771.05/30,065.30
  6. Step 6: Final answer
    x = 16,986.88

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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.