Home / 28,561.82-42,756.26-25,929.32

Finding the Fourth Proportional to 28,561.82, 42,756.26 and 25,929.32

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Solution

The fourth proportional to 28,561.82, 42,756.26 and 25,929.32 is: 38,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.82 : 42,756.26 = 25,929.32 : x
  2. Step 2: Convert to fraction form
    28,561.82/42,756.26 = 25,929.32/x
  3. Step 3: Cross multiply
    28,561.82x = 42,756.26 × 25,929.32
  4. Step 4: Simplify right side
    28,561.82x = 1,108,640,404.12
  5. Step 5: Solve for x
    x = 1,108,640,404.12/28,561.82
  6. Step 6: Final answer
    x = 38,815.47

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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.