Home / 20,699.62-28,565.34-11,268.34

Finding the Fourth Proportional to 20,699.62, 28,565.34 and 11,268.34

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Solution

The fourth proportional to 20,699.62, 28,565.34 and 11,268.34 is: 15,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.62 : 28,565.34 = 11,268.34 : x
  2. Step 2: Convert to fraction form
    20,699.62/28,565.34 = 11,268.34/x
  3. Step 3: Cross multiply
    20,699.62x = 28,565.34 × 11,268.34
  4. Step 4: Simplify right side
    20,699.62x = 321,883,963.34
  5. Step 5: Solve for x
    x = 321,883,963.34/20,699.62
  6. Step 6: Final answer
    x = 15,550.24

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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.