Home / 21,343.20-32,014.80-10,216

Finding the Fourth Proportional to 21,343.20, 32,014.80 and 10,216

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Solution

The fourth proportional to 21,343.20, 32,014.80 and 10,216 is: 15,324

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.20 : 32,014.80 = 10,216 : x
  2. Step 2: Convert to fraction form
    21,343.20/32,014.80 = 10,216/x
  3. Step 3: Cross multiply
    21,343.20x = 32,014.80 × 10,216
  4. Step 4: Simplify right side
    21,343.20x = 327,063,196.80
  5. Step 5: Solve for x
    x = 327,063,196.80/21,343.20
  6. Step 6: Final answer
    x = 15,324

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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.