Home / 21,451.45-32,180.28-6,661.57

Finding the Fourth Proportional to 21,451.45, 32,180.28 and 6,661.57

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Solution

The fourth proportional to 21,451.45, 32,180.28 and 6,661.57 is: 9,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451.45 : 32,180.28 = 6,661.57 : x
  2. Step 2: Convert to fraction form
    21,451.45/32,180.28 = 6,661.57/x
  3. Step 3: Cross multiply
    21,451.45x = 32,180.28 × 6,661.57
  4. Step 4: Simplify right side
    21,451.45x = 214,371,187.84
  5. Step 5: Solve for x
    x = 214,371,187.84/21,451.45
  6. Step 6: Final answer
    x = 9,993.32

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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.