Home / 20,754.87-28,647.86-14,469.27

Finding the Fourth Proportional to 20,754.87, 28,647.86 and 14,469.27

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Solution

The fourth proportional to 20,754.87, 28,647.86 and 14,469.27 is: 19,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.87 : 28,647.86 = 14,469.27 : x
  2. Step 2: Convert to fraction form
    20,754.87/28,647.86 = 14,469.27/x
  3. Step 3: Cross multiply
    20,754.87x = 28,647.86 × 14,469.27
  4. Step 4: Simplify right side
    20,754.87x = 414,513,548.92
  5. Step 5: Solve for x
    x = 414,513,548.92/20,754.87
  6. Step 6: Final answer
    x = 19,971.87

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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.