Home / 22,651.90-31,259.82-13,218.64

Finding the Fourth Proportional to 22,651.90, 31,259.82 and 13,218.64

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Solution

The fourth proportional to 22,651.90, 31,259.82 and 13,218.64 is: 18,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,651.90 : 31,259.82 = 13,218.64 : x
  2. Step 2: Convert to fraction form
    22,651.90/31,259.82 = 13,218.64/x
  3. Step 3: Cross multiply
    22,651.90x = 31,259.82 × 13,218.64
  4. Step 4: Simplify right side
    22,651.90x = 413,212,307.04
  5. Step 5: Solve for x
    x = 413,212,307.04/22,651.90
  6. Step 6: Final answer
    x = 18,241.84

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1.5x scale

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.