Home / 20,698.38-28,563.78-11,266.96

Finding the Fourth Proportional to 20,698.38, 28,563.78 and 11,266.96

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Solution

The fourth proportional to 20,698.38, 28,563.78 and 11,266.96 is: 15,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.38 : 28,563.78 = 11,266.96 : x
  2. Step 2: Convert to fraction form
    20,698.38/28,563.78 = 11,266.96/x
  3. Step 3: Cross multiply
    20,698.38x = 28,563.78 × 11,266.96
  4. Step 4: Simplify right side
    20,698.38x = 321,826,966.71
  5. Step 5: Solve for x
    x = 321,826,966.71/20,698.38
  6. Step 6: Final answer
    x = 15,548.41

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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.