Home / 28,091.76-38,757.33-18,536.39

Finding the Fourth Proportional to 28,091.76, 38,757.33 and 18,536.39

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Solution

The fourth proportional to 28,091.76, 38,757.33 and 18,536.39 is: 25,574.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.76 : 38,757.33 = 18,536.39 : x
  2. Step 2: Convert to fraction form
    28,091.76/38,757.33 = 18,536.39/x
  3. Step 3: Cross multiply
    28,091.76x = 38,757.33 × 18,536.39
  4. Step 4: Simplify right side
    28,091.76x = 718,421,081.13
  5. Step 5: Solve for x
    x = 718,421,081.13/28,091.76
  6. Step 6: Final answer
    x = 25,574.09

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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.