Home / 20,496.18-30,745.38-6,457.31

Finding the Fourth Proportional to 20,496.18, 30,745.38 and 6,457.31

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Solution

The fourth proportional to 20,496.18, 30,745.38 and 6,457.31 is: 9,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.18 : 30,745.38 = 6,457.31 : x
  2. Step 2: Convert to fraction form
    20,496.18/30,745.38 = 6,457.31/x
  3. Step 3: Cross multiply
    20,496.18x = 30,745.38 × 6,457.31
  4. Step 4: Simplify right side
    20,496.18x = 198,532,417.44
  5. Step 5: Solve for x
    x = 198,532,417.44/20,496.18
  6. Step 6: Final answer
    x = 9,686.31

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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.