Home / 21,731.24-30,003.06-14,936.55

Finding the Fourth Proportional to 21,731.24, 30,003.06 and 14,936.55

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Solution

The fourth proportional to 21,731.24, 30,003.06 and 14,936.55 is: 20,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.24 : 30,003.06 = 14,936.55 : x
  2. Step 2: Convert to fraction form
    21,731.24/30,003.06 = 14,936.55/x
  3. Step 3: Cross multiply
    21,731.24x = 30,003.06 × 14,936.55
  4. Step 4: Simplify right side
    21,731.24x = 448,142,205.84
  5. Step 5: Solve for x
    x = 448,142,205.84/21,731.24
  6. Step 6: Final answer
    x = 20,622.03

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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.