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Finding the Fourth Proportional to 22,218.98, 30,659.22 and 14,271.98

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Solution

The fourth proportional to 22,218.98, 30,659.22 and 14,271.98 is: 19,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.98 : 30,659.22 = 14,271.98 : x
  2. Step 2: Convert to fraction form
    22,218.98/30,659.22 = 14,271.98/x
  3. Step 3: Cross multiply
    22,218.98x = 30,659.22 × 14,271.98
  4. Step 4: Simplify right side
    22,218.98x = 437,567,774.66
  5. Step 5: Solve for x
    x = 437,567,774.66/22,218.98
  6. Step 6: Final answer
    x = 19,693.42

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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.