Home / 21,405.42-32,099.10-6,414.67

Finding the Fourth Proportional to 21,405.42, 32,099.10 and 6,414.67

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Solution

The fourth proportional to 21,405.42, 32,099.10 and 6,414.67 is: 9,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.42 : 32,099.10 = 6,414.67 : x
  2. Step 2: Convert to fraction form
    21,405.42/32,099.10 = 6,414.67/x
  3. Step 3: Cross multiply
    21,405.42x = 32,099.10 × 6,414.67
  4. Step 4: Simplify right side
    21,405.42x = 205,904,969.31
  5. Step 5: Solve for x
    x = 205,904,969.31/21,405.42
  6. Step 6: Final answer
    x = 9,619.29

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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.