Home / 19,276.88-28,930.76-18,661.80

Finding the Fourth Proportional to 19,276.88, 28,930.76 and 18,661.80

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Solution

The fourth proportional to 19,276.88, 28,930.76 and 18,661.80 is: 28,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.88 : 28,930.76 = 18,661.80 : x
  2. Step 2: Convert to fraction form
    19,276.88/28,930.76 = 18,661.80/x
  3. Step 3: Cross multiply
    19,276.88x = 28,930.76 × 18,661.80
  4. Step 4: Simplify right side
    19,276.88x = 539,899,963.66
  5. Step 5: Solve for x
    x = 539,899,963.66/19,276.88
  6. Step 6: Final answer
    x = 28,007.64

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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.