Home / 21,552.22-29,733.60-15,900.58

Finding the Fourth Proportional to 21,552.22, 29,733.60 and 15,900.58

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Solution

The fourth proportional to 21,552.22, 29,733.60 and 15,900.58 is: 21,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.22 : 29,733.60 = 15,900.58 : x
  2. Step 2: Convert to fraction form
    21,552.22/29,733.60 = 15,900.58/x
  3. Step 3: Cross multiply
    21,552.22x = 29,733.60 × 15,900.58
  4. Step 4: Simplify right side
    21,552.22x = 472,781,485.49
  5. Step 5: Solve for x
    x = 472,781,485.49/21,552.22
  6. Step 6: Final answer
    x = 21,936.56

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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.