Home / 21,835.97-30,125.11-12,273.69

Finding the Fourth Proportional to 21,835.97, 30,125.11 and 12,273.69

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Solution

The fourth proportional to 21,835.97, 30,125.11 and 12,273.69 is: 16,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.97 : 30,125.11 = 12,273.69 : x
  2. Step 2: Convert to fraction form
    21,835.97/30,125.11 = 12,273.69/x
  3. Step 3: Cross multiply
    21,835.97x = 30,125.11 × 12,273.69
  4. Step 4: Simplify right side
    21,835.97x = 369,746,199.99
  5. Step 5: Solve for x
    x = 369,746,199.99/21,835.97
  6. Step 6: Final answer
    x = 16,932.90

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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.