Home / 21,953.87-30,296.43-11,882.31

Finding the Fourth Proportional to 21,953.87, 30,296.43 and 11,882.31

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Solution

The fourth proportional to 21,953.87, 30,296.43 and 11,882.31 is: 16,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,953.87 : 30,296.43 = 11,882.31 : x
  2. Step 2: Convert to fraction form
    21,953.87/30,296.43 = 11,882.31/x
  3. Step 3: Cross multiply
    21,953.87x = 30,296.43 × 11,882.31
  4. Step 4: Simplify right side
    21,953.87x = 359,991,573.15
  5. Step 5: Solve for x
    x = 359,991,573.15/21,953.87
  6. Step 6: Final answer
    x = 16,397.64

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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.