Home / 20,836.69-28,768.07-18,594.74

Finding the Fourth Proportional to 20,836.69, 28,768.07 and 18,594.74

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Solution

The fourth proportional to 20,836.69, 28,768.07 and 18,594.74 is: 25,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.69 : 28,768.07 = 18,594.74 : x
  2. Step 2: Convert to fraction form
    20,836.69/28,768.07 = 18,594.74/x
  3. Step 3: Cross multiply
    20,836.69x = 28,768.07 × 18,594.74
  4. Step 4: Simplify right side
    20,836.69x = 534,934,781.95
  5. Step 5: Solve for x
    x = 534,934,781.95/20,836.69
  6. Step 6: Final answer
    x = 25,672.73

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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.