Home / 19,842.45-27,381.75-11,880.03

Finding the Fourth Proportional to 19,842.45, 27,381.75 and 11,880.03

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Solution

The fourth proportional to 19,842.45, 27,381.75 and 11,880.03 is: 16,393.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.45 : 27,381.75 = 11,880.03 : x
  2. Step 2: Convert to fraction form
    19,842.45/27,381.75 = 11,880.03/x
  3. Step 3: Cross multiply
    19,842.45x = 27,381.75 × 11,880.03
  4. Step 4: Simplify right side
    19,842.45x = 325,296,011.45
  5. Step 5: Solve for x
    x = 325,296,011.45/19,842.45
  6. Step 6: Final answer
    x = 16,393.94

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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.