Home / 21,624.80-29,842.44-12,677.60

Finding the Fourth Proportional to 21,624.80, 29,842.44 and 12,677.60

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Solution

The fourth proportional to 21,624.80, 29,842.44 and 12,677.60 is: 17,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.80 : 29,842.44 = 12,677.60 : x
  2. Step 2: Convert to fraction form
    21,624.80/29,842.44 = 12,677.60/x
  3. Step 3: Cross multiply
    21,624.80x = 29,842.44 × 12,677.60
  4. Step 4: Simplify right side
    21,624.80x = 378,330,517.34
  5. Step 5: Solve for x
    x = 378,330,517.34/21,624.80
  6. Step 6: Final answer
    x = 17,495.21

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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.