Home / 20,796.50-28,699.17-11,365.04

Finding the Fourth Proportional to 20,796.50, 28,699.17 and 11,365.04

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Solution

The fourth proportional to 20,796.50, 28,699.17 and 11,365.04 is: 15,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.50 : 28,699.17 = 11,365.04 : x
  2. Step 2: Convert to fraction form
    20,796.50/28,699.17 = 11,365.04/x
  3. Step 3: Cross multiply
    20,796.50x = 28,699.17 × 11,365.04
  4. Step 4: Simplify right side
    20,796.50x = 326,167,215.02
  5. Step 5: Solve for x
    x = 326,167,215.02/20,796.50
  6. Step 6: Final answer
    x = 15,683.76

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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.