Home / 13,950.39-20,925.24-3,420.33

Finding the Fourth Proportional to 13,950.39, 20,925.24 and 3,420.33

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Solution

The fourth proportional to 13,950.39, 20,925.24 and 3,420.33 is: 5,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.39 : 20,925.24 = 3,420.33 : x
  2. Step 2: Convert to fraction form
    13,950.39/20,925.24 = 3,420.33/x
  3. Step 3: Cross multiply
    13,950.39x = 20,925.24 × 3,420.33
  4. Step 4: Simplify right side
    13,950.39x = 71,571,134.83
  5. Step 5: Solve for x
    x = 71,571,134.83/13,950.39
  6. Step 6: Final answer
    x = 5,130.40

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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.