Home / 20,844.56-28,767.14-11,890.01

Finding the Fourth Proportional to 20,844.56, 28,767.14 and 11,890.01

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Solution

The fourth proportional to 20,844.56, 28,767.14 and 11,890.01 is: 16,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.56 : 28,767.14 = 11,890.01 : x
  2. Step 2: Convert to fraction form
    20,844.56/28,767.14 = 11,890.01/x
  3. Step 3: Cross multiply
    20,844.56x = 28,767.14 × 11,890.01
  4. Step 4: Simplify right side
    20,844.56x = 342,041,582.27
  5. Step 5: Solve for x
    x = 342,041,582.27/20,844.56
  6. Step 6: Final answer
    x = 16,409.15

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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.