Home / 20,277.16-27,950.70-18,647.83

Finding the Fourth Proportional to 20,277.16, 27,950.70 and 18,647.83

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Solution

The fourth proportional to 20,277.16, 27,950.70 and 18,647.83 is: 25,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.16 : 27,950.70 = 18,647.83 : x
  2. Step 2: Convert to fraction form
    20,277.16/27,950.70 = 18,647.83/x
  3. Step 3: Cross multiply
    20,277.16x = 27,950.70 × 18,647.83
  4. Step 4: Simplify right side
    20,277.16x = 521,219,901.98
  5. Step 5: Solve for x
    x = 521,219,901.98/20,277.16
  6. Step 6: Final answer
    x = 25,704.78

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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.