Home / 21,433.05-29,578.55-12,001.41

Finding the Fourth Proportional to 21,433.05, 29,578.55 and 12,001.41

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Solution

The fourth proportional to 21,433.05, 29,578.55 and 12,001.41 is: 16,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.05 : 29,578.55 = 12,001.41 : x
  2. Step 2: Convert to fraction form
    21,433.05/29,578.55 = 12,001.41/x
  3. Step 3: Cross multiply
    21,433.05x = 29,578.55 × 12,001.41
  4. Step 4: Simplify right side
    21,433.05x = 354,984,245.75
  5. Step 5: Solve for x
    x = 354,984,245.75/21,433.05
  6. Step 6: Final answer
    x = 16,562.47

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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.