Home / 20,412.46-28,173.79-13,334.82

Finding the Fourth Proportional to 20,412.46, 28,173.79 and 13,334.82

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Solution

The fourth proportional to 20,412.46, 28,173.79 and 13,334.82 is: 18,405.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.46 : 28,173.79 = 13,334.82 : x
  2. Step 2: Convert to fraction form
    20,412.46/28,173.79 = 13,334.82/x
  3. Step 3: Cross multiply
    20,412.46x = 28,173.79 × 13,334.82
  4. Step 4: Simplify right side
    20,412.46x = 375,692,418.37
  5. Step 5: Solve for x
    x = 375,692,418.37/20,412.46
  6. Step 6: Final answer
    x = 18,405.05

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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.