Home / 28,435.70-39,233.39-18,364.57

Finding the Fourth Proportional to 28,435.70, 39,233.39 and 18,364.57

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Solution

The fourth proportional to 28,435.70, 39,233.39 and 18,364.57 is: 25,338.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.70 : 39,233.39 = 18,364.57 : x
  2. Step 2: Convert to fraction form
    28,435.70/39,233.39 = 18,364.57/x
  3. Step 3: Cross multiply
    28,435.70x = 39,233.39 × 18,364.57
  4. Step 4: Simplify right side
    28,435.70x = 720,504,284.82
  5. Step 5: Solve for x
    x = 720,504,284.82/28,435.70
  6. Step 6: Final answer
    x = 25,338.02

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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.