Home / 21,232.53-29,310.66-16,774.70

Finding the Fourth Proportional to 21,232.53, 29,310.66 and 16,774.70

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Solution

The fourth proportional to 21,232.53, 29,310.66 and 16,774.70 is: 23,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.53 : 29,310.66 = 16,774.70 : x
  2. Step 2: Convert to fraction form
    21,232.53/29,310.66 = 16,774.70/x
  3. Step 3: Cross multiply
    21,232.53x = 29,310.66 × 16,774.70
  4. Step 4: Simplify right side
    21,232.53x = 491,677,381.75
  5. Step 5: Solve for x
    x = 491,677,381.75/21,232.53
  6. Step 6: Final answer
    x = 23,156.80

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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.