Home / 14,208.75-21,313.53-3,820.50

Finding the Fourth Proportional to 14,208.75, 21,313.53 and 3,820.50

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Solution

The fourth proportional to 14,208.75, 21,313.53 and 3,820.50 is: 5,730.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.75 : 21,313.53 = 3,820.50 : x
  2. Step 2: Convert to fraction form
    14,208.75/21,313.53 = 3,820.50/x
  3. Step 3: Cross multiply
    14,208.75x = 21,313.53 × 3,820.50
  4. Step 4: Simplify right side
    14,208.75x = 81,428,341.37
  5. Step 5: Solve for x
    x = 81,428,341.37/14,208.75
  6. Step 6: Final answer
    x = 5,730.86

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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.