Home / 21,400.32-32,100.39-5,817.90

Finding the Fourth Proportional to 21,400.32, 32,100.39 and 5,817.90

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Solution

The fourth proportional to 21,400.32, 32,100.39 and 5,817.90 is: 8,726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.32 : 32,100.39 = 5,817.90 : x
  2. Step 2: Convert to fraction form
    21,400.32/32,100.39 = 5,817.90/x
  3. Step 3: Cross multiply
    21,400.32x = 32,100.39 × 5,817.90
  4. Step 4: Simplify right side
    21,400.32x = 186,756,858.98
  5. Step 5: Solve for x
    x = 186,756,858.98/21,400.32
  6. Step 6: Final answer
    x = 8,726.83

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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.