Home / 21,416.82-32,129.94-6,423.33

Finding the Fourth Proportional to 21,416.82, 32,129.94 and 6,423.33

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Solution

The fourth proportional to 21,416.82, 32,129.94 and 6,423.33 is: 9,636.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.82 : 32,129.94 = 6,423.33 : x
  2. Step 2: Convert to fraction form
    21,416.82/32,129.94 = 6,423.33/x
  3. Step 3: Cross multiply
    21,416.82x = 32,129.94 × 6,423.33
  4. Step 4: Simplify right side
    21,416.82x = 206,381,207.50
  5. Step 5: Solve for x
    x = 206,381,207.50/21,416.82
  6. Step 6: Final answer
    x = 9,636.41

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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.