Home / 20,496.80-30,746.32-6,457.94

Finding the Fourth Proportional to 20,496.80, 30,746.32 and 6,457.94

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Solution

The fourth proportional to 20,496.80, 30,746.32 and 6,457.94 is: 9,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.80 : 30,746.32 = 6,457.94 : x
  2. Step 2: Convert to fraction form
    20,496.80/30,746.32 = 6,457.94/x
  3. Step 3: Cross multiply
    20,496.80x = 30,746.32 × 6,457.94
  4. Step 4: Simplify right side
    20,496.80x = 198,557,719.90
  5. Step 5: Solve for x
    x = 198,557,719.90/20,496.80
  6. Step 6: Final answer
    x = 9,687.25

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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.