Home / 28,504.82-39,336.71-15,929.57

Finding the Fourth Proportional to 28,504.82, 39,336.71 and 15,929.57

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Solution

The fourth proportional to 28,504.82, 39,336.71 and 15,929.57 is: 21,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,504.82 : 39,336.71 = 15,929.57 : x
  2. Step 2: Convert to fraction form
    28,504.82/39,336.71 = 15,929.57/x
  3. Step 3: Cross multiply
    28,504.82x = 39,336.71 × 15,929.57
  4. Step 4: Simplify right side
    28,504.82x = 626,616,599.18
  5. Step 5: Solve for x
    x = 626,616,599.18/28,504.82
  6. Step 6: Final answer
    x = 21,982.83

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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.