Home / 21,349.42-29,468.46-12,400.94

Finding the Fourth Proportional to 21,349.42, 29,468.46 and 12,400.94

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Solution

The fourth proportional to 21,349.42, 29,468.46 and 12,400.94 is: 17,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.42 : 29,468.46 = 12,400.94 : x
  2. Step 2: Convert to fraction form
    21,349.42/29,468.46 = 12,400.94/x
  3. Step 3: Cross multiply
    21,349.42x = 29,468.46 × 12,400.94
  4. Step 4: Simplify right side
    21,349.42x = 365,436,604.35
  5. Step 5: Solve for x
    x = 365,436,604.35/21,349.42
  6. Step 6: Final answer
    x = 17,116.93

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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.