Home / 28,557.84-42,812.12-11,039.96

Finding the Fourth Proportional to 28,557.84, 42,812.12 and 11,039.96

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Solution

The fourth proportional to 28,557.84, 42,812.12 and 11,039.96 is: 16,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.84 : 42,812.12 = 11,039.96 : x
  2. Step 2: Convert to fraction form
    28,557.84/42,812.12 = 11,039.96/x
  3. Step 3: Cross multiply
    28,557.84x = 42,812.12 × 11,039.96
  4. Step 4: Simplify right side
    28,557.84x = 472,644,092.32
  5. Step 5: Solve for x
    x = 472,644,092.32/28,557.84
  6. Step 6: Final answer
    x = 16,550.41

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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.