Home / 28,696.42-39,608.88-18,624.28

Finding the Fourth Proportional to 28,696.42, 39,608.88 and 18,624.28

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Solution

The fourth proportional to 28,696.42, 39,608.88 and 18,624.28 is: 25,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.42 : 39,608.88 = 18,624.28 : x
  2. Step 2: Convert to fraction form
    28,696.42/39,608.88 = 18,624.28/x
  3. Step 3: Cross multiply
    28,696.42x = 39,608.88 × 18,624.28
  4. Step 4: Simplify right side
    28,696.42x = 737,686,673.56
  5. Step 5: Solve for x
    x = 737,686,673.56/28,696.42
  6. Step 6: Final answer
    x = 25,706.58

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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.