Home / 13,827.99-20,742.06-3,439.74

Finding the Fourth Proportional to 13,827.99, 20,742.06 and 3,439.74

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Solution

The fourth proportional to 13,827.99, 20,742.06 and 3,439.74 is: 5,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.99 : 20,742.06 = 3,439.74 : x
  2. Step 2: Convert to fraction form
    13,827.99/20,742.06 = 3,439.74/x
  3. Step 3: Cross multiply
    13,827.99x = 20,742.06 × 3,439.74
  4. Step 4: Simplify right side
    13,827.99x = 71,347,293.46
  5. Step 5: Solve for x
    x = 71,347,293.46/13,827.99
  6. Step 6: Final answer
    x = 5,159.63

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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.