Home / 21,661.44-29,883.72-14,575.56

Finding the Fourth Proportional to 21,661.44, 29,883.72 and 14,575.56

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Solution

The fourth proportional to 21,661.44, 29,883.72 and 14,575.56 is: 20,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.44 : 29,883.72 = 14,575.56 : x
  2. Step 2: Convert to fraction form
    21,661.44/29,883.72 = 14,575.56/x
  3. Step 3: Cross multiply
    21,661.44x = 29,883.72 × 14,575.56
  4. Step 4: Simplify right side
    21,661.44x = 435,571,953.88
  5. Step 5: Solve for x
    x = 435,571,953.88/21,661.44
  6. Step 6: Final answer
    x = 20,108.17

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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.