Home / 20,131.53-27,782.43-11,634.74

Finding the Fourth Proportional to 20,131.53, 27,782.43 and 11,634.74

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Solution

The fourth proportional to 20,131.53, 27,782.43 and 11,634.74 is: 16,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.53 : 27,782.43 = 11,634.74 : x
  2. Step 2: Convert to fraction form
    20,131.53/27,782.43 = 11,634.74/x
  3. Step 3: Cross multiply
    20,131.53x = 27,782.43 × 11,634.74
  4. Step 4: Simplify right side
    20,131.53x = 323,241,152.53
  5. Step 5: Solve for x
    x = 323,241,152.53/20,131.53
  6. Step 6: Final answer
    x = 16,056.46

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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.