Home / 19,840.70-27,381.37-13,114.66

Finding the Fourth Proportional to 19,840.70, 27,381.37 and 13,114.66

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Solution

The fourth proportional to 19,840.70, 27,381.37 and 13,114.66 is: 18,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.70 : 27,381.37 = 13,114.66 : x
  2. Step 2: Convert to fraction form
    19,840.70/27,381.37 = 13,114.66/x
  3. Step 3: Cross multiply
    19,840.70x = 27,381.37 × 13,114.66
  4. Step 4: Simplify right side
    19,840.70x = 359,097,357.88
  5. Step 5: Solve for x
    x = 359,097,357.88/19,840.70
  6. Step 6: Final answer
    x = 18,099.03

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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.