Home / 21,243.96-29,314.80-11,813.04

Finding the Fourth Proportional to 21,243.96, 29,314.80 and 11,813.04

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Solution

The fourth proportional to 21,243.96, 29,314.80 and 11,813.04 is: 16,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243.96 : 29,314.80 = 11,813.04 : x
  2. Step 2: Convert to fraction form
    21,243.96/29,314.80 = 11,813.04/x
  3. Step 3: Cross multiply
    21,243.96x = 29,314.80 × 11,813.04
  4. Step 4: Simplify right side
    21,243.96x = 346,296,904.99
  5. Step 5: Solve for x
    x = 346,296,904.99/21,243.96
  6. Step 6: Final answer
    x = 16,300.96

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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.