Home / 28,299.59-42,450.80-10,770.78

Finding the Fourth Proportional to 28,299.59, 42,450.80 and 10,770.78

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Solution

The fourth proportional to 28,299.59, 42,450.80 and 10,770.78 is: 16,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.59 : 42,450.80 = 10,770.78 : x
  2. Step 2: Convert to fraction form
    28,299.59/42,450.80 = 10,770.78/x
  3. Step 3: Cross multiply
    28,299.59x = 42,450.80 × 10,770.78
  4. Step 4: Simplify right side
    28,299.59x = 457,228,173.77
  5. Step 5: Solve for x
    x = 457,228,173.77/28,299.59
  6. Step 6: Final answer
    x = 16,156.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.