Home / 21,153.44-29,125.28-17,960.42

Finding the Fourth Proportional to 21,153.44, 29,125.28 and 17,960.42

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Solution

The fourth proportional to 21,153.44, 29,125.28 and 17,960.42 is: 24,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.44 : 29,125.28 = 17,960.42 : x
  2. Step 2: Convert to fraction form
    21,153.44/29,125.28 = 17,960.42/x
  3. Step 3: Cross multiply
    21,153.44x = 29,125.28 × 17,960.42
  4. Step 4: Simplify right side
    21,153.44x = 523,102,025.99
  5. Step 5: Solve for x
    x = 523,102,025.99/21,153.44
  6. Step 6: Final answer
    x = 24,728.94

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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.