Home / 21,331.50-29,435.46-12,376.96

Finding the Fourth Proportional to 21,331.50, 29,435.46 and 12,376.96

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Solution

The fourth proportional to 21,331.50, 29,435.46 and 12,376.96 is: 17,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.50 : 29,435.46 = 12,376.96 : x
  2. Step 2: Convert to fraction form
    21,331.50/29,435.46 = 12,376.96/x
  3. Step 3: Cross multiply
    21,331.50x = 29,435.46 × 12,376.96
  4. Step 4: Simplify right side
    21,331.50x = 364,321,511.00
  5. Step 5: Solve for x
    x = 364,321,511.00/21,331.50
  6. Step 6: Final answer
    x = 17,079.04

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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.