Home / 28,563.10-42,844.65-19,231.90

Finding the Fourth Proportional to 28,563.10, 42,844.65 and 19,231.90

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Solution

The fourth proportional to 28,563.10, 42,844.65 and 19,231.90 is: 28,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.10 : 42,844.65 = 19,231.90 : x
  2. Step 2: Convert to fraction form
    28,563.10/42,844.65 = 19,231.90/x
  3. Step 3: Cross multiply
    28,563.10x = 42,844.65 × 19,231.90
  4. Step 4: Simplify right side
    28,563.10x = 823,984,024.34
  5. Step 5: Solve for x
    x = 823,984,024.34/28,563.10
  6. Step 6: Final answer
    x = 28,847.85

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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.