Home / 28,902.63-39,880.22-18,284.79

Finding the Fourth Proportional to 28,902.63, 39,880.22 and 18,284.79

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Solution

The fourth proportional to 28,902.63, 39,880.22 and 18,284.79 is: 25,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.63 : 39,880.22 = 18,284.79 : x
  2. Step 2: Convert to fraction form
    28,902.63/39,880.22 = 18,284.79/x
  3. Step 3: Cross multiply
    28,902.63x = 39,880.22 × 18,284.79
  4. Step 4: Simplify right side
    28,902.63x = 729,201,356.43
  5. Step 5: Solve for x
    x = 729,201,356.43/28,902.63
  6. Step 6: Final answer
    x = 25,229.58

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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.