Home / 28,106.45-38,769.92-18,542.93

Finding the Fourth Proportional to 28,106.45, 38,769.92 and 18,542.93

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Solution

The fourth proportional to 28,106.45, 38,769.92 and 18,542.93 is: 25,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106.45 : 38,769.92 = 18,542.93 : x
  2. Step 2: Convert to fraction form
    28,106.45/38,769.92 = 18,542.93/x
  3. Step 3: Cross multiply
    28,106.45x = 38,769.92 × 18,542.93
  4. Step 4: Simplify right side
    28,106.45x = 718,907,626.10
  5. Step 5: Solve for x
    x = 718,907,626.10/28,106.45
  6. Step 6: Final answer
    x = 25,578.03

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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.