Home / 21,439.53-32,162.41-6,649.64

Finding the Fourth Proportional to 21,439.53, 32,162.41 and 6,649.64

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Solution

The fourth proportional to 21,439.53, 32,162.41 and 6,649.64 is: 9,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.53 : 32,162.41 = 6,649.64 : x
  2. Step 2: Convert to fraction form
    21,439.53/32,162.41 = 6,649.64/x
  3. Step 3: Cross multiply
    21,439.53x = 32,162.41 × 6,649.64
  4. Step 4: Simplify right side
    21,439.53x = 213,868,253.97
  5. Step 5: Solve for x
    x = 213,868,253.97/21,439.53
  6. Step 6: Final answer
    x = 9,975.42

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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.