Home / 28,511.48-42,744.12-11,883.96

Finding the Fourth Proportional to 28,511.48, 42,744.12 and 11,883.96

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Solution

The fourth proportional to 28,511.48, 42,744.12 and 11,883.96 is: 17,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.48 : 42,744.12 = 11,883.96 : x
  2. Step 2: Convert to fraction form
    28,511.48/42,744.12 = 11,883.96/x
  3. Step 3: Cross multiply
    28,511.48x = 42,744.12 × 11,883.96
  4. Step 4: Simplify right side
    28,511.48x = 507,969,412.32
  5. Step 5: Solve for x
    x = 507,969,412.32/28,511.48
  6. Step 6: Final answer
    x = 17,816.31

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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.