Home / 21,438.45-32,162.40-7,206.44

Finding the Fourth Proportional to 21,438.45, 32,162.40 and 7,206.44

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Solution

The fourth proportional to 21,438.45, 32,162.40 and 7,206.44 is: 10,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438.45 : 32,162.40 = 7,206.44 : x
  2. Step 2: Convert to fraction form
    21,438.45/32,162.40 = 7,206.44/x
  3. Step 3: Cross multiply
    21,438.45x = 32,162.40 × 7,206.44
  4. Step 4: Simplify right side
    21,438.45x = 231,776,245.04
  5. Step 5: Solve for x
    x = 231,776,245.04/21,438.45
  6. Step 6: Final answer
    x = 10,811.24

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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.