Home / 13,969.43-20,953.96-3,439.58

Finding the Fourth Proportional to 13,969.43, 20,953.96 and 3,439.58

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Solution

The fourth proportional to 13,969.43, 20,953.96 and 3,439.58 is: 5,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.43 : 20,953.96 = 3,439.58 : x
  2. Step 2: Convert to fraction form
    13,969.43/20,953.96 = 3,439.58/x
  3. Step 3: Cross multiply
    13,969.43x = 20,953.96 × 3,439.58
  4. Step 4: Simplify right side
    13,969.43x = 72,072,708.37
  5. Step 5: Solve for x
    x = 72,072,708.37/13,969.43
  6. Step 6: Final answer
    x = 5,159.32

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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.