Home / 39,516.09-54,530.19-21,607.62

Finding the Fourth Proportional to 39,516.09, 54,530.19 and 21,607.62

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Solution

The fourth proportional to 39,516.09, 54,530.19 and 21,607.62 is: 29,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,516.09 : 54,530.19 = 21,607.62 : x
  2. Step 2: Convert to fraction form
    39,516.09/54,530.19 = 21,607.62/x
  3. Step 3: Cross multiply
    39,516.09x = 54,530.19 × 21,607.62
  4. Step 4: Simplify right side
    39,516.09x = 1,178,267,624.05
  5. Step 5: Solve for x
    x = 1,178,267,624.05/39,516.09
  6. Step 6: Final answer
    x = 29,817.41

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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.