Home / 21,516.08-29,694.72-12,084.60

Finding the Fourth Proportional to 21,516.08, 29,694.72 and 12,084.60

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Solution

The fourth proportional to 21,516.08, 29,694.72 and 12,084.60 is: 16,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.08 : 29,694.72 = 12,084.60 : x
  2. Step 2: Convert to fraction form
    21,516.08/29,694.72 = 12,084.60/x
  3. Step 3: Cross multiply
    21,516.08x = 29,694.72 × 12,084.60
  4. Step 4: Simplify right side
    21,516.08x = 358,848,813.31
  5. Step 5: Solve for x
    x = 358,848,813.31/21,516.08
  6. Step 6: Final answer
    x = 16,678.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.