Home / 28,049.95-42,080.66-11,409.85

Finding the Fourth Proportional to 28,049.95, 42,080.66 and 11,409.85

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Solution

The fourth proportional to 28,049.95, 42,080.66 and 11,409.85 is: 17,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.95 : 42,080.66 = 11,409.85 : x
  2. Step 2: Convert to fraction form
    28,049.95/42,080.66 = 11,409.85/x
  3. Step 3: Cross multiply
    28,049.95x = 42,080.66 × 11,409.85
  4. Step 4: Simplify right side
    28,049.95x = 480,133,751.05
  5. Step 5: Solve for x
    x = 480,133,751.05/28,049.95
  6. Step 6: Final answer
    x = 17,117.10

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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.