Home / 25,380.21-38,070.36-6,912.21

Finding the Fourth Proportional to 25,380.21, 38,070.36 and 6,912.21

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Solution

The fourth proportional to 25,380.21, 38,070.36 and 6,912.21 is: 10,368.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,380.21 : 38,070.36 = 6,912.21 : x
  2. Step 2: Convert to fraction form
    25,380.21/38,070.36 = 6,912.21/x
  3. Step 3: Cross multiply
    25,380.21x = 38,070.36 × 6,912.21
  4. Step 4: Simplify right side
    25,380.21x = 263,150,323.10
  5. Step 5: Solve for x
    x = 263,150,323.10/25,380.21
  6. Step 6: Final answer
    x = 10,368.33

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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.