Home / 14,216.90-21,179.44-13,577.20

Finding the Fourth Proportional to 14,216.90, 21,179.44 and 13,577.20

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Solution

The fourth proportional to 14,216.90, 21,179.44 and 13,577.20 is: 20,226.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.90 : 21,179.44 = 13,577.20 : x
  2. Step 2: Convert to fraction form
    14,216.90/21,179.44 = 13,577.20/x
  3. Step 3: Cross multiply
    14,216.90x = 21,179.44 × 13,577.20
  4. Step 4: Simplify right side
    14,216.90x = 287,557,575.93
  5. Step 5: Solve for x
    x = 287,557,575.93/14,216.90
  6. Step 6: Final answer
    x = 20,226.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.