Home / 20,645.44-30,968.10-5,854.36

Finding the Fourth Proportional to 20,645.44, 30,968.10 and 5,854.36

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Solution

The fourth proportional to 20,645.44, 30,968.10 and 5,854.36 is: 8,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.44 : 30,968.10 = 5,854.36 : x
  2. Step 2: Convert to fraction form
    20,645.44/30,968.10 = 5,854.36/x
  3. Step 3: Cross multiply
    20,645.44x = 30,968.10 × 5,854.36
  4. Step 4: Simplify right side
    20,645.44x = 181,298,405.92
  5. Step 5: Solve for x
    x = 181,298,405.92/20,645.44
  6. Step 6: Final answer
    x = 8,781.52

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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.