Home / 21,268.38-29,352.06-12,316.04

Finding the Fourth Proportional to 21,268.38, 29,352.06 and 12,316.04

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Solution

The fourth proportional to 21,268.38, 29,352.06 and 12,316.04 is: 16,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.38 : 29,352.06 = 12,316.04 : x
  2. Step 2: Convert to fraction form
    21,268.38/29,352.06 = 12,316.04/x
  3. Step 3: Cross multiply
    21,268.38x = 29,352.06 × 12,316.04
  4. Step 4: Simplify right side
    21,268.38x = 361,500,936.70
  5. Step 5: Solve for x
    x = 361,500,936.70/21,268.38
  6. Step 6: Final answer
    x = 16,997.11

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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.