Home / 20,484.78-30,736.29-17,854.92

Finding the Fourth Proportional to 20,484.78, 30,736.29 and 17,854.92

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Solution

The fourth proportional to 20,484.78, 30,736.29 and 17,854.92 is: 26,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.78 : 30,736.29 = 17,854.92 : x
  2. Step 2: Convert to fraction form
    20,484.78/30,736.29 = 17,854.92/x
  3. Step 3: Cross multiply
    20,484.78x = 30,736.29 × 17,854.92
  4. Step 4: Simplify right side
    20,484.78x = 548,793,999.05
  5. Step 5: Solve for x
    x = 548,793,999.05/20,484.78
  6. Step 6: Final answer
    x = 26,790.33

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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.