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Finding the Fourth Proportional to 21,713.36, 29,965.04 and 12,283.36

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Solution

The fourth proportional to 21,713.36, 29,965.04 and 12,283.36 is: 16,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.36 : 29,965.04 = 12,283.36 : x
  2. Step 2: Convert to fraction form
    21,713.36/29,965.04 = 12,283.36/x
  3. Step 3: Cross multiply
    21,713.36x = 29,965.04 × 12,283.36
  4. Step 4: Simplify right side
    21,713.36x = 368,071,373.73
  5. Step 5: Solve for x
    x = 368,071,373.73/21,713.36
  6. Step 6: Final answer
    x = 16,951.38

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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.