Home / 28,818.92-39,770.30-16,072.92

Finding the Fourth Proportional to 28,818.92, 39,770.30 and 16,072.92

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Solution

The fourth proportional to 28,818.92, 39,770.30 and 16,072.92 is: 22,180.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.92 : 39,770.30 = 16,072.92 : x
  2. Step 2: Convert to fraction form
    28,818.92/39,770.30 = 16,072.92/x
  3. Step 3: Cross multiply
    28,818.92x = 39,770.30 × 16,072.92
  4. Step 4: Simplify right side
    28,818.92x = 639,224,850.28
  5. Step 5: Solve for x
    x = 639,224,850.28/28,818.92
  6. Step 6: Final answer
    x = 22,180.74

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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.