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Finding the Fourth Proportional to 21,846.39, 32,694.29 and 13,407.29

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Solution

The fourth proportional to 21,846.39, 32,694.29 and 13,407.29 is: 20,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846.39 : 32,694.29 = 13,407.29 : x
  2. Step 2: Convert to fraction form
    21,846.39/32,694.29 = 13,407.29/x
  3. Step 3: Cross multiply
    21,846.39x = 32,694.29 × 13,407.29
  4. Step 4: Simplify right side
    21,846.39x = 438,341,842.85
  5. Step 5: Solve for x
    x = 438,341,842.85/21,846.39
  6. Step 6: Final answer
    x = 20,064.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.