Home / 19,927.43-27,489.75-12,378.23

Finding the Fourth Proportional to 19,927.43, 27,489.75 and 12,378.23

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Solution

The fourth proportional to 19,927.43, 27,489.75 and 12,378.23 is: 17,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.43 : 27,489.75 = 12,378.23 : x
  2. Step 2: Convert to fraction form
    19,927.43/27,489.75 = 12,378.23/x
  3. Step 3: Cross multiply
    19,927.43x = 27,489.75 × 12,378.23
  4. Step 4: Simplify right side
    19,927.43x = 340,274,310.69
  5. Step 5: Solve for x
    x = 340,274,310.69/19,927.43
  6. Step 6: Final answer
    x = 17,075.68

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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.