Home / 14,228.88-21,340.40-3,838.20

Finding the Fourth Proportional to 14,228.88, 21,340.40 and 3,838.20

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Solution

The fourth proportional to 14,228.88, 21,340.40 and 3,838.20 is: 5,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.88 : 21,340.40 = 3,838.20 : x
  2. Step 2: Convert to fraction form
    14,228.88/21,340.40 = 3,838.20/x
  3. Step 3: Cross multiply
    14,228.88x = 21,340.40 × 3,838.20
  4. Step 4: Simplify right side
    14,228.88x = 81,908,723.28
  5. Step 5: Solve for x
    x = 81,908,723.28/14,228.88
  6. Step 6: Final answer
    x = 5,756.51

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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.