Home / 20,629.59-28,467.34-11,678.10

Finding the Fourth Proportional to 20,629.59, 28,467.34 and 11,678.10

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Solution

The fourth proportional to 20,629.59, 28,467.34 and 11,678.10 is: 16,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.59 : 28,467.34 = 11,678.10 : x
  2. Step 2: Convert to fraction form
    20,629.59/28,467.34 = 11,678.10/x
  3. Step 3: Cross multiply
    20,629.59x = 28,467.34 × 11,678.10
  4. Step 4: Simplify right side
    20,629.59x = 332,444,443.25
  5. Step 5: Solve for x
    x = 332,444,443.25/20,629.59
  6. Step 6: Final answer
    x = 16,114.93

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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.