Home / 20,695.41-28,559.78-11,263.99

Finding the Fourth Proportional to 20,695.41, 28,559.78 and 11,263.99

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Solution

The fourth proportional to 20,695.41, 28,559.78 and 11,263.99 is: 15,544.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.41 : 28,559.78 = 11,263.99 : x
  2. Step 2: Convert to fraction form
    20,695.41/28,559.78 = 11,263.99/x
  3. Step 3: Cross multiply
    20,695.41x = 28,559.78 × 11,263.99
  4. Step 4: Simplify right side
    20,695.41x = 321,697,076.32
  5. Step 5: Solve for x
    x = 321,697,076.32/20,695.41
  6. Step 6: Final answer
    x = 15,544.37

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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.