Home / 28,104.84-38,780.70-16,163.82

Finding the Fourth Proportional to 28,104.84, 38,780.70 and 16,163.82

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Solution

The fourth proportional to 28,104.84, 38,780.70 and 16,163.82 is: 22,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.84 : 38,780.70 = 16,163.82 : x
  2. Step 2: Convert to fraction form
    28,104.84/38,780.70 = 16,163.82/x
  3. Step 3: Cross multiply
    28,104.84x = 38,780.70 × 16,163.82
  4. Step 4: Simplify right side
    28,104.84x = 626,844,254.27
  5. Step 5: Solve for x
    x = 626,844,254.27/28,104.84
  6. Step 6: Final answer
    x = 22,303.78

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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.