Home / 28,743.39-43,126.43-18,880.83

Finding the Fourth Proportional to 28,743.39, 43,126.43 and 18,880.83

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Solution

The fourth proportional to 28,743.39, 43,126.43 and 18,880.83 is: 28,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.39 : 43,126.43 = 18,880.83 : x
  2. Step 2: Convert to fraction form
    28,743.39/43,126.43 = 18,880.83/x
  3. Step 3: Cross multiply
    28,743.39x = 43,126.43 × 18,880.83
  4. Step 4: Simplify right side
    28,743.39x = 814,262,698.93
  5. Step 5: Solve for x
    x = 814,262,698.93/28,743.39
  6. Step 6: Final answer
    x = 28,328.69

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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.