Home / 14,519.88-21,639.87-14,228.28

Finding the Fourth Proportional to 14,519.88, 21,639.87 and 14,228.28

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Solution

The fourth proportional to 14,519.88, 21,639.87 and 14,228.28 is: 21,205.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.88 : 21,639.87 = 14,228.28 : x
  2. Step 2: Convert to fraction form
    14,519.88/21,639.87 = 14,228.28/x
  3. Step 3: Cross multiply
    14,519.88x = 21,639.87 × 14,228.28
  4. Step 4: Simplify right side
    14,519.88x = 307,898,129.52
  5. Step 5: Solve for x
    x = 307,898,129.52/14,519.88
  6. Step 6: Final answer
    x = 21,205.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.