Home / 30,621.68-45,941.16-12,166.64

Finding the Fourth Proportional to 30,621.68, 45,941.16 and 12,166.64

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Solution

The fourth proportional to 30,621.68, 45,941.16 and 12,166.64 is: 18,253.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.68 : 45,941.16 = 12,166.64 : x
  2. Step 2: Convert to fraction form
    30,621.68/45,941.16 = 12,166.64/x
  3. Step 3: Cross multiply
    30,621.68x = 45,941.16 × 12,166.64
  4. Step 4: Simplify right side
    30,621.68x = 558,949,554.90
  5. Step 5: Solve for x
    x = 558,949,554.90/30,621.68
  6. Step 6: Final answer
    x = 18,253.39

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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.