Home / 21,212.42-29,273.60-12,260.30

Finding the Fourth Proportional to 21,212.42, 29,273.60 and 12,260.30

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Solution

The fourth proportional to 21,212.42, 29,273.60 and 12,260.30 is: 16,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.42 : 29,273.60 = 12,260.30 : x
  2. Step 2: Convert to fraction form
    21,212.42/29,273.60 = 12,260.30/x
  3. Step 3: Cross multiply
    21,212.42x = 29,273.60 × 12,260.30
  4. Step 4: Simplify right side
    21,212.42x = 358,903,002.36
  5. Step 5: Solve for x
    x = 358,903,002.36/21,212.42
  6. Step 6: Final answer
    x = 16,919.48

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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.