Home / 21,214.94-29,273.37-12,260.72

Finding the Fourth Proportional to 21,214.94, 29,273.37 and 12,260.72

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Solution

The fourth proportional to 21,214.94, 29,273.37 and 12,260.72 is: 16,917.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.94 : 29,273.37 = 12,260.72 : x
  2. Step 2: Convert to fraction form
    21,214.94/29,273.37 = 12,260.72/x
  3. Step 3: Cross multiply
    21,214.94x = 29,273.37 × 12,260.72
  4. Step 4: Simplify right side
    21,214.94x = 358,912,446.66
  5. Step 5: Solve for x
    x = 358,912,446.66/21,214.94
  6. Step 6: Final answer
    x = 16,917.91

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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.