Home / 39,516.19-54,533.64-21,611.19

Finding the Fourth Proportional to 39,516.19, 54,533.64 and 21,611.19

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Solution

The fourth proportional to 39,516.19, 54,533.64 and 21,611.19 is: 29,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,516.19 : 54,533.64 = 21,611.19 : x
  2. Step 2: Convert to fraction form
    39,516.19/54,533.64 = 21,611.19/x
  3. Step 3: Cross multiply
    39,516.19x = 54,533.64 × 21,611.19
  4. Step 4: Simplify right side
    39,516.19x = 1,178,536,855.43
  5. Step 5: Solve for x
    x = 1,178,536,855.43/39,516.19
  6. Step 6: Final answer
    x = 29,824.15

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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.