Home / 21,716.12-29,941.98-18,353

Finding the Fourth Proportional to 21,716.12, 29,941.98 and 18,353

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Solution

The fourth proportional to 21,716.12, 29,941.98 and 18,353 is: 25,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,716.12 : 29,941.98 = 18,353 : x
  2. Step 2: Convert to fraction form
    21,716.12/29,941.98 = 18,353/x
  3. Step 3: Cross multiply
    21,716.12x = 29,941.98 × 18,353
  4. Step 4: Simplify right side
    21,716.12x = 549,525,158.94
  5. Step 5: Solve for x
    x = 549,525,158.94/21,716.12
  6. Step 6: Final answer
    x = 25,304.94

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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.