Home / 20,277.77-28,002.56-19,173.33

Finding the Fourth Proportional to 20,277.77, 28,002.56 and 19,173.33

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Solution

The fourth proportional to 20,277.77, 28,002.56 and 19,173.33 is: 26,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.77 : 28,002.56 = 19,173.33 : x
  2. Step 2: Convert to fraction form
    20,277.77/28,002.56 = 19,173.33/x
  3. Step 3: Cross multiply
    20,277.77x = 28,002.56 × 19,173.33
  4. Step 4: Simplify right side
    20,277.77x = 536,902,227.86
  5. Step 5: Solve for x
    x = 536,902,227.86/20,277.77
  6. Step 6: Final answer
    x = 26,477.39

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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.