Home / 21,153.96-29,126.04-17,960.58

Finding the Fourth Proportional to 21,153.96, 29,126.04 and 17,960.58

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Solution

The fourth proportional to 21,153.96, 29,126.04 and 17,960.58 is: 24,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.96 : 29,126.04 = 17,960.58 : x
  2. Step 2: Convert to fraction form
    21,153.96/29,126.04 = 17,960.58/x
  3. Step 3: Cross multiply
    21,153.96x = 29,126.04 × 17,960.58
  4. Step 4: Simplify right side
    21,153.96x = 523,120,571.50
  5. Step 5: Solve for x
    x = 523,120,571.50/21,153.96
  6. Step 6: Final answer
    x = 24,729.20

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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.