Home / 13,421.36-20,132.04-3,561.41

Finding the Fourth Proportional to 13,421.36, 20,132.04 and 3,561.41

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Solution

The fourth proportional to 13,421.36, 20,132.04 and 3,561.41 is: 5,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.36 : 20,132.04 = 3,561.41 : x
  2. Step 2: Convert to fraction form
    13,421.36/20,132.04 = 3,561.41/x
  3. Step 3: Cross multiply
    13,421.36x = 20,132.04 × 3,561.41
  4. Step 4: Simplify right side
    13,421.36x = 71,698,448.58
  5. Step 5: Solve for x
    x = 71,698,448.58/13,421.36
  6. Step 6: Final answer
    x = 5,342.12

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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.