Home / 28,620.66-42,923.16-11,977.14

Finding the Fourth Proportional to 28,620.66, 42,923.16 and 11,977.14

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Solution

The fourth proportional to 28,620.66, 42,923.16 and 11,977.14 is: 17,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.66 : 42,923.16 = 11,977.14 : x
  2. Step 2: Convert to fraction form
    28,620.66/42,923.16 = 11,977.14/x
  3. Step 3: Cross multiply
    28,620.66x = 42,923.16 × 11,977.14
  4. Step 4: Simplify right side
    28,620.66x = 514,096,696.56
  5. Step 5: Solve for x
    x = 514,096,696.56/28,620.66
  6. Step 6: Final answer
    x = 17,962.43

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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.