Home / 21,892.58-30,211.99-12,461.75

Finding the Fourth Proportional to 21,892.58, 30,211.99 and 12,461.75

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Solution

The fourth proportional to 21,892.58, 30,211.99 and 12,461.75 is: 17,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.58 : 30,211.99 = 12,461.75 : x
  2. Step 2: Convert to fraction form
    21,892.58/30,211.99 = 12,461.75/x
  3. Step 3: Cross multiply
    21,892.58x = 30,211.99 × 12,461.75
  4. Step 4: Simplify right side
    21,892.58x = 376,494,197.46
  5. Step 5: Solve for x
    x = 376,494,197.46/21,892.58
  6. Step 6: Final answer
    x = 17,197.34

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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.