Home / 18,838.20-28,257.30-14,681.33

Finding the Fourth Proportional to 18,838.20, 28,257.30 and 14,681.33

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Solution

The fourth proportional to 18,838.20, 28,257.30 and 14,681.33 is: 22,021.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.20 : 28,257.30 = 14,681.33 : x
  2. Step 2: Convert to fraction form
    18,838.20/28,257.30 = 14,681.33/x
  3. Step 3: Cross multiply
    18,838.20x = 28,257.30 × 14,681.33
  4. Step 4: Simplify right side
    18,838.20x = 414,854,604.92
  5. Step 5: Solve for x
    x = 414,854,604.92/18,838.20
  6. Step 6: Final answer
    x = 22,021.99

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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.