Home / 30,999.12-46,491.68-8,812.01

Finding the Fourth Proportional to 30,999.12, 46,491.68 and 8,812.01

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Solution

The fourth proportional to 30,999.12, 46,491.68 and 8,812.01 is: 13,216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999.12 : 46,491.68 = 8,812.01 : x
  2. Step 2: Convert to fraction form
    30,999.12/46,491.68 = 8,812.01/x
  3. Step 3: Cross multiply
    30,999.12x = 46,491.68 × 8,812.01
  4. Step 4: Simplify right side
    30,999.12x = 409,684,872.56
  5. Step 5: Solve for x
    x = 409,684,872.56/30,999.12
  6. Step 6: Final answer
    x = 13,216.02

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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.