Home / 14,238.48-21,357.72-3,851.28

Finding the Fourth Proportional to 14,238.48, 21,357.72 and 3,851.28

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Solution

The fourth proportional to 14,238.48, 21,357.72 and 3,851.28 is: 5,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.48 : 21,357.72 = 3,851.28 : x
  2. Step 2: Convert to fraction form
    14,238.48/21,357.72 = 3,851.28/x
  3. Step 3: Cross multiply
    14,238.48x = 21,357.72 × 3,851.28
  4. Step 4: Simplify right side
    14,238.48x = 82,254,559.88
  5. Step 5: Solve for x
    x = 82,254,559.88/14,238.48
  6. Step 6: Final answer
    x = 5,776.92

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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.