Home / 28,336.57-39,104.37-15,761.32

Finding the Fourth Proportional to 28,336.57, 39,104.37 and 15,761.32

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Solution

The fourth proportional to 28,336.57, 39,104.37 and 15,761.32 is: 21,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.57 : 39,104.37 = 15,761.32 : x
  2. Step 2: Convert to fraction form
    28,336.57/39,104.37 = 15,761.32/x
  3. Step 3: Cross multiply
    28,336.57x = 39,104.37 × 15,761.32
  4. Step 4: Simplify right side
    28,336.57x = 616,336,488.97
  5. Step 5: Solve for x
    x = 616,336,488.97/28,336.57
  6. Step 6: Final answer
    x = 21,750.57

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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.