Home / 21,734.75-29,995.77-13,774.07

Finding the Fourth Proportional to 21,734.75, 29,995.77 and 13,774.07

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Solution

The fourth proportional to 21,734.75, 29,995.77 and 13,774.07 is: 19,009.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,734.75 : 29,995.77 = 13,774.07 : x
  2. Step 2: Convert to fraction form
    21,734.75/29,995.77 = 13,774.07/x
  3. Step 3: Cross multiply
    21,734.75x = 29,995.77 × 13,774.07
  4. Step 4: Simplify right side
    21,734.75x = 413,163,835.68
  5. Step 5: Solve for x
    x = 413,163,835.68/21,734.75
  6. Step 6: Final answer
    x = 19,009.37

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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.