Home / 39,504.78-54,516.65-21,599.87

Finding the Fourth Proportional to 39,504.78, 54,516.65 and 21,599.87

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Solution

The fourth proportional to 39,504.78, 54,516.65 and 21,599.87 is: 29,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,504.78 : 54,516.65 = 21,599.87 : x
  2. Step 2: Convert to fraction form
    39,504.78/54,516.65 = 21,599.87/x
  3. Step 3: Cross multiply
    39,504.78x = 54,516.65 × 21,599.87
  4. Step 4: Simplify right side
    39,504.78x = 1,177,552,172.25
  5. Step 5: Solve for x
    x = 1,177,552,172.25/39,504.78
  6. Step 6: Final answer
    x = 29,807.84

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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.