Home / 28,754.80-39,668.74-16,812.97

Finding the Fourth Proportional to 28,754.80, 39,668.74 and 16,812.97

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Solution

The fourth proportional to 28,754.80, 39,668.74 and 16,812.97 is: 23,194.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.80 : 39,668.74 = 16,812.97 : x
  2. Step 2: Convert to fraction form
    28,754.80/39,668.74 = 16,812.97/x
  3. Step 3: Cross multiply
    28,754.80x = 39,668.74 × 16,812.97
  4. Step 4: Simplify right side
    28,754.80x = 666,949,194.35
  5. Step 5: Solve for x
    x = 666,949,194.35/28,754.80
  6. Step 6: Final answer
    x = 23,194.36

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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.