Home / 28,314.36-42,470.28-13,533.48

Finding the Fourth Proportional to 28,314.36, 42,470.28 and 13,533.48

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Solution

The fourth proportional to 28,314.36, 42,470.28 and 13,533.48 is: 20,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.36 : 42,470.28 = 13,533.48 : x
  2. Step 2: Convert to fraction form
    28,314.36/42,470.28 = 13,533.48/x
  3. Step 3: Cross multiply
    28,314.36x = 42,470.28 × 13,533.48
  4. Step 4: Simplify right side
    28,314.36x = 574,770,684.97
  5. Step 5: Solve for x
    x = 574,770,684.97/28,314.36
  6. Step 6: Final answer
    x = 20,299.62

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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.