Home / 13,950.36-20,925.10-3,420.41

Finding the Fourth Proportional to 13,950.36, 20,925.10 and 3,420.41

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Solution

The fourth proportional to 13,950.36, 20,925.10 and 3,420.41 is: 5,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.36 : 20,925.10 = 3,420.41 : x
  2. Step 2: Convert to fraction form
    13,950.36/20,925.10 = 3,420.41/x
  3. Step 3: Cross multiply
    13,950.36x = 20,925.10 × 3,420.41
  4. Step 4: Simplify right side
    13,950.36x = 71,572,438.64
  5. Step 5: Solve for x
    x = 71,572,438.64/13,950.36
  6. Step 6: Final answer
    x = 5,130.51

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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.