Home / 28,091.26-38,756.64-18,535.89

Finding the Fourth Proportional to 28,091.26, 38,756.64 and 18,535.89

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Solution

The fourth proportional to 28,091.26, 38,756.64 and 18,535.89 is: 25,573.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.26 : 38,756.64 = 18,535.89 : x
  2. Step 2: Convert to fraction form
    28,091.26/38,756.64 = 18,535.89/x
  3. Step 3: Cross multiply
    28,091.26x = 38,756.64 × 18,535.89
  4. Step 4: Simplify right side
    28,091.26x = 718,388,815.81
  5. Step 5: Solve for x
    x = 718,388,815.81/28,091.26
  6. Step 6: Final answer
    x = 25,573.39

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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.