Home / 30,186.12-45,281.68-9,409.62

Finding the Fourth Proportional to 30,186.12, 45,281.68 and 9,409.62

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Solution

The fourth proportional to 30,186.12, 45,281.68 and 9,409.62 is: 14,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.12 : 45,281.68 = 9,409.62 : x
  2. Step 2: Convert to fraction form
    30,186.12/45,281.68 = 9,409.62/x
  3. Step 3: Cross multiply
    30,186.12x = 45,281.68 × 9,409.62
  4. Step 4: Simplify right side
    30,186.12x = 426,083,401.76
  5. Step 5: Solve for x
    x = 426,083,401.76/30,186.12
  6. Step 6: Final answer
    x = 14,115.21

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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.