Home / 21,953.25-30,295.56-11,881.68

Finding the Fourth Proportional to 21,953.25, 30,295.56 and 11,881.68

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Solution

The fourth proportional to 21,953.25, 30,295.56 and 11,881.68 is: 16,396.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,953.25 : 30,295.56 = 11,881.68 : x
  2. Step 2: Convert to fraction form
    21,953.25/30,295.56 = 11,881.68/x
  3. Step 3: Cross multiply
    21,953.25x = 30,295.56 × 11,881.68
  4. Step 4: Simplify right side
    21,953.25x = 359,962,149.34
  5. Step 5: Solve for x
    x = 359,962,149.34/21,953.25
  6. Step 6: Final answer
    x = 16,396.76

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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.