Home / 21,214.83-29,273.21-12,260.60

Finding the Fourth Proportional to 21,214.83, 29,273.21 and 12,260.60

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Solution

The fourth proportional to 21,214.83, 29,273.21 and 12,260.60 is: 16,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.83 : 29,273.21 = 12,260.60 : x
  2. Step 2: Convert to fraction form
    21,214.83/29,273.21 = 12,260.60/x
  3. Step 3: Cross multiply
    21,214.83x = 29,273.21 × 12,260.60
  4. Step 4: Simplify right side
    21,214.83x = 358,907,032.13
  5. Step 5: Solve for x
    x = 358,907,032.13/21,214.83
  6. Step 6: Final answer
    x = 16,917.74

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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.