Home / 21,475.26-29,635.83-12,043.74

Finding the Fourth Proportional to 21,475.26, 29,635.83 and 12,043.74

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Solution

The fourth proportional to 21,475.26, 29,635.83 and 12,043.74 is: 16,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.26 : 29,635.83 = 12,043.74 : x
  2. Step 2: Convert to fraction form
    21,475.26/29,635.83 = 12,043.74/x
  3. Step 3: Cross multiply
    21,475.26x = 29,635.83 × 12,043.74
  4. Step 4: Simplify right side
    21,475.26x = 356,926,231.20
  5. Step 5: Solve for x
    x = 356,926,231.20/21,475.26
  6. Step 6: Final answer
    x = 16,620.35

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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.