Home / 21,822.84-30,126.90-16,966.80

Finding the Fourth Proportional to 21,822.84, 30,126.90 and 16,966.80

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Solution

The fourth proportional to 21,822.84, 30,126.90 and 16,966.80 is: 23,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.84 : 30,126.90 = 16,966.80 : x
  2. Step 2: Convert to fraction form
    21,822.84/30,126.90 = 16,966.80/x
  3. Step 3: Cross multiply
    21,822.84x = 30,126.90 × 16,966.80
  4. Step 4: Simplify right side
    21,822.84x = 511,157,086.92
  5. Step 5: Solve for x
    x = 511,157,086.92/21,822.84
  6. Step 6: Final answer
    x = 23,423.03

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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.