Home / 28,305.45-39,061.98-16,205.88

Finding the Fourth Proportional to 28,305.45, 39,061.98 and 16,205.88

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Solution

The fourth proportional to 28,305.45, 39,061.98 and 16,205.88 is: 22,364.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.45 : 39,061.98 = 16,205.88 : x
  2. Step 2: Convert to fraction form
    28,305.45/39,061.98 = 16,205.88/x
  3. Step 3: Cross multiply
    28,305.45x = 39,061.98 × 16,205.88
  4. Step 4: Simplify right side
    28,305.45x = 633,033,760.44
  5. Step 5: Solve for x
    x = 633,033,760.44/28,305.45
  6. Step 6: Final answer
    x = 22,364.38

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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.