Home / 14,215.20-21,322.80-3,826.92

Finding the Fourth Proportional to 14,215.20, 21,322.80 and 3,826.92

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Solution

The fourth proportional to 14,215.20, 21,322.80 and 3,826.92 is: 5,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.20 : 21,322.80 = 3,826.92 : x
  2. Step 2: Convert to fraction form
    14,215.20/21,322.80 = 3,826.92/x
  3. Step 3: Cross multiply
    14,215.20x = 21,322.80 × 3,826.92
  4. Step 4: Simplify right side
    14,215.20x = 81,600,649.78
  5. Step 5: Solve for x
    x = 81,600,649.78/14,215.20
  6. Step 6: Final answer
    x = 5,740.38

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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.