Home / 21,450.64-32,176.82-6,659.23

Finding the Fourth Proportional to 21,450.64, 32,176.82 and 6,659.23

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Solution

The fourth proportional to 21,450.64, 32,176.82 and 6,659.23 is: 9,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.64 : 32,176.82 = 6,659.23 : x
  2. Step 2: Convert to fraction form
    21,450.64/32,176.82 = 6,659.23/x
  3. Step 3: Cross multiply
    21,450.64x = 32,176.82 × 6,659.23
  4. Step 4: Simplify right side
    21,450.64x = 214,272,811.75
  5. Step 5: Solve for x
    x = 214,272,811.75/21,450.64
  6. Step 6: Final answer
    x = 9,989.11

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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.