Home / 20,678.73-28,544.76-14,660.43

Finding the Fourth Proportional to 20,678.73, 28,544.76 and 14,660.43

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Solution

The fourth proportional to 20,678.73, 28,544.76 and 14,660.43 is: 20,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678.73 : 28,544.76 = 14,660.43 : x
  2. Step 2: Convert to fraction form
    20,678.73/28,544.76 = 14,660.43/x
  3. Step 3: Cross multiply
    20,678.73x = 28,544.76 × 14,660.43
  4. Step 4: Simplify right side
    20,678.73x = 418,478,455.85
  5. Step 5: Solve for x
    x = 418,478,455.85/20,678.73
  6. Step 6: Final answer
    x = 20,237.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.