Home / 28,742.90-43,115.70-9,022.10

Finding the Fourth Proportional to 28,742.90, 43,115.70 and 9,022.10

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Solution

The fourth proportional to 28,742.90, 43,115.70 and 9,022.10 is: 13,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.90 : 43,115.70 = 9,022.10 : x
  2. Step 2: Convert to fraction form
    28,742.90/43,115.70 = 9,022.10/x
  3. Step 3: Cross multiply
    28,742.90x = 43,115.70 × 9,022.10
  4. Step 4: Simplify right side
    28,742.90x = 388,994,156.97
  5. Step 5: Solve for x
    x = 388,994,156.97/28,742.90
  6. Step 6: Final answer
    x = 13,533.57

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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.