Home / 14,039.92-21,059.79-3,509.89

Finding the Fourth Proportional to 14,039.92, 21,059.79 and 3,509.89

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Solution

The fourth proportional to 14,039.92, 21,059.79 and 3,509.89 is: 5,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.92 : 21,059.79 = 3,509.89 : x
  2. Step 2: Convert to fraction form
    14,039.92/21,059.79 = 3,509.89/x
  3. Step 3: Cross multiply
    14,039.92x = 21,059.79 × 3,509.89
  4. Step 4: Simplify right side
    14,039.92x = 73,917,432.25
  5. Step 5: Solve for x
    x = 73,917,432.25/14,039.92
  6. Step 6: Final answer
    x = 5,264.81

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1.5x scale

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.