Home / 21,464.55-29,634.96-13,811.25

Finding the Fourth Proportional to 21,464.55, 29,634.96 and 13,811.25

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Solution

The fourth proportional to 21,464.55, 29,634.96 and 13,811.25 is: 19,068.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.55 : 29,634.96 = 13,811.25 : x
  2. Step 2: Convert to fraction form
    21,464.55/29,634.96 = 13,811.25/x
  3. Step 3: Cross multiply
    21,464.55x = 29,634.96 × 13,811.25
  4. Step 4: Simplify right side
    21,464.55x = 409,295,841.30
  5. Step 5: Solve for x
    x = 409,295,841.30/21,464.55
  6. Step 6: Final answer
    x = 19,068.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.