Home / 21,453.84-29,614.32-19,211.76

Finding the Fourth Proportional to 21,453.84, 29,614.32 and 19,211.76

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Solution

The fourth proportional to 21,453.84, 29,614.32 and 19,211.76 is: 26,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.84 : 29,614.32 = 19,211.76 : x
  2. Step 2: Convert to fraction form
    21,453.84/29,614.32 = 19,211.76/x
  3. Step 3: Cross multiply
    21,453.84x = 29,614.32 × 19,211.76
  4. Step 4: Simplify right side
    21,453.84x = 568,943,208.40
  5. Step 5: Solve for x
    x = 568,943,208.40/21,453.84
  6. Step 6: Final answer
    x = 26,519.41

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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.