Home / 39,063.69-53,907.91-21,158.64

Finding the Fourth Proportional to 39,063.69, 53,907.91 and 21,158.64

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Solution

The fourth proportional to 39,063.69, 53,907.91 and 21,158.64 is: 29,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,063.69 : 53,907.91 = 21,158.64 : x
  2. Step 2: Convert to fraction form
    39,063.69/53,907.91 = 21,158.64/x
  3. Step 3: Cross multiply
    39,063.69x = 53,907.91 × 21,158.64
  4. Step 4: Simplify right side
    39,063.69x = 1,140,618,007.95
  5. Step 5: Solve for x
    x = 1,140,618,007.95/39,063.69
  6. Step 6: Final answer
    x = 29,198.93

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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.