Home / 21,922.60-32,846.10-10,211.80

Finding the Fourth Proportional to 21,922.60, 32,846.10 and 10,211.80

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Solution

The fourth proportional to 21,922.60, 32,846.10 and 10,211.80 is: 15,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.60 : 32,846.10 = 10,211.80 : x
  2. Step 2: Convert to fraction form
    21,922.60/32,846.10 = 10,211.80/x
  3. Step 3: Cross multiply
    21,922.60x = 32,846.10 × 10,211.80
  4. Step 4: Simplify right side
    21,922.60x = 335,417,803.98
  5. Step 5: Solve for x
    x = 335,417,803.98/21,922.60
  6. Step 6: Final answer
    x = 15,300.09

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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.