Home / 13,429.94-20,143.05-3,570.02

Finding the Fourth Proportional to 13,429.94, 20,143.05 and 3,570.02

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Solution

The fourth proportional to 13,429.94, 20,143.05 and 3,570.02 is: 5,354.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.94 : 20,143.05 = 3,570.02 : x
  2. Step 2: Convert to fraction form
    13,429.94/20,143.05 = 3,570.02/x
  3. Step 3: Cross multiply
    13,429.94x = 20,143.05 × 3,570.02
  4. Step 4: Simplify right side
    13,429.94x = 71,911,091.36
  5. Step 5: Solve for x
    x = 71,911,091.36/13,429.94
  6. Step 6: Final answer
    x = 5,354.54

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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.