Home / 28,913.69-39,907.58-18,824.59

Finding the Fourth Proportional to 28,913.69, 39,907.58 and 18,824.59

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Solution

The fourth proportional to 28,913.69, 39,907.58 and 18,824.59 is: 25,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.69 : 39,907.58 = 18,824.59 : x
  2. Step 2: Convert to fraction form
    28,913.69/39,907.58 = 18,824.59/x
  3. Step 3: Cross multiply
    28,913.69x = 39,907.58 × 18,824.59
  4. Step 4: Simplify right side
    28,913.69x = 751,243,537.73
  5. Step 5: Solve for x
    x = 751,243,537.73/28,913.69
  6. Step 6: Final answer
    x = 25,982.28

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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.