Home / 30,486.12-45,741.33-10,766.67

Finding the Fourth Proportional to 30,486.12, 45,741.33 and 10,766.67

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Solution

The fourth proportional to 30,486.12, 45,741.33 and 10,766.67 is: 16,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.12 : 45,741.33 = 10,766.67 : x
  2. Step 2: Convert to fraction form
    30,486.12/45,741.33 = 10,766.67/x
  3. Step 3: Cross multiply
    30,486.12x = 45,741.33 × 10,766.67
  4. Step 4: Simplify right side
    30,486.12x = 492,481,805.47
  5. Step 5: Solve for x
    x = 492,481,805.47/30,486.12
  6. Step 6: Final answer
    x = 16,154.30

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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.