Home / 34,785.96-48,003.66-20,638.50

Finding the Fourth Proportional to 34,785.96, 48,003.66 and 20,638.50

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Solution

The fourth proportional to 34,785.96, 48,003.66 and 20,638.50 is: 28,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,785.96 : 48,003.66 = 20,638.50 : x
  2. Step 2: Convert to fraction form
    34,785.96/48,003.66 = 20,638.50/x
  3. Step 3: Cross multiply
    34,785.96x = 48,003.66 × 20,638.50
  4. Step 4: Simplify right side
    34,785.96x = 990,723,536.91
  5. Step 5: Solve for x
    x = 990,723,536.91/34,785.96
  6. Step 6: Final answer
    x = 28,480.56

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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.