Home / 21,383.46-29,510.73-11,951.42

Finding the Fourth Proportional to 21,383.46, 29,510.73 and 11,951.42

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Solution

The fourth proportional to 21,383.46, 29,510.73 and 11,951.42 is: 16,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.46 : 29,510.73 = 11,951.42 : x
  2. Step 2: Convert to fraction form
    21,383.46/29,510.73 = 11,951.42/x
  3. Step 3: Cross multiply
    21,383.46x = 29,510.73 × 11,951.42
  4. Step 4: Simplify right side
    21,383.46x = 352,694,981.18
  5. Step 5: Solve for x
    x = 352,694,981.18/21,383.46
  6. Step 6: Final answer
    x = 16,493.82

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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.