Home / 18,917.38-28,242.82-14,451.50

Finding the Fourth Proportional to 18,917.38, 28,242.82 and 14,451.50

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Solution

The fourth proportional to 18,917.38, 28,242.82 and 14,451.50 is: 21,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.38 : 28,242.82 = 14,451.50 : x
  2. Step 2: Convert to fraction form
    18,917.38/28,242.82 = 14,451.50/x
  3. Step 3: Cross multiply
    18,917.38x = 28,242.82 × 14,451.50
  4. Step 4: Simplify right side
    18,917.38x = 408,150,935.89
  5. Step 5: Solve for x
    x = 408,150,935.89/18,917.38
  6. Step 6: Final answer
    x = 21,575.45

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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.