Home / 20,480.37-28,257.26-11,527.35

Finding the Fourth Proportional to 20,480.37, 28,257.26 and 11,527.35

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Solution

The fourth proportional to 20,480.37, 28,257.26 and 11,527.35 is: 15,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.37 : 28,257.26 = 11,527.35 : x
  2. Step 2: Convert to fraction form
    20,480.37/28,257.26 = 11,527.35/x
  3. Step 3: Cross multiply
    20,480.37x = 28,257.26 × 11,527.35
  4. Step 4: Simplify right side
    20,480.37x = 325,731,268.42
  5. Step 5: Solve for x
    x = 325,731,268.42/20,480.37
  6. Step 6: Final answer
    x = 15,904.56

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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.