Home / 28,684.97-43,012.61-12,876.39

Finding the Fourth Proportional to 28,684.97, 43,012.61 and 12,876.39

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Solution

The fourth proportional to 28,684.97, 43,012.61 and 12,876.39 is: 19,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684.97 : 43,012.61 = 12,876.39 : x
  2. Step 2: Convert to fraction form
    28,684.97/43,012.61 = 12,876.39/x
  3. Step 3: Cross multiply
    28,684.97x = 43,012.61 × 12,876.39
  4. Step 4: Simplify right side
    28,684.97x = 553,847,109.09
  5. Step 5: Solve for x
    x = 553,847,109.09/28,684.97
  6. Step 6: Final answer
    x = 19,307.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.