Home / 20,776.08-28,678.92-14,096.28

Finding the Fourth Proportional to 20,776.08, 28,678.92 and 14,096.28

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Solution

The fourth proportional to 20,776.08, 28,678.92 and 14,096.28 is: 19,458.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776.08 : 28,678.92 = 14,096.28 : x
  2. Step 2: Convert to fraction form
    20,776.08/28,678.92 = 14,096.28/x
  3. Step 3: Cross multiply
    20,776.08x = 28,678.92 × 14,096.28
  4. Step 4: Simplify right side
    20,776.08x = 404,266,086.42
  5. Step 5: Solve for x
    x = 404,266,086.42/20,776.08
  6. Step 6: Final answer
    x = 19,458.25

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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.