Home / 21,318.06-29,418.60-12,367.08

Finding the Fourth Proportional to 21,318.06, 29,418.60 and 12,367.08

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Solution

The fourth proportional to 21,318.06, 29,418.60 and 12,367.08 is: 17,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318.06 : 29,418.60 = 12,367.08 : x
  2. Step 2: Convert to fraction form
    21,318.06/29,418.60 = 12,367.08/x
  3. Step 3: Cross multiply
    21,318.06x = 29,418.60 × 12,367.08
  4. Step 4: Simplify right side
    21,318.06x = 363,822,179.69
  5. Step 5: Solve for x
    x = 363,822,179.69/21,318.06
  6. Step 6: Final answer
    x = 17,066.38

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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.