Home / 20,699.00-28,563.20-11,267.36

Finding the Fourth Proportional to 20,699.00, 28,563.20 and 11,267.36

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Solution

The fourth proportional to 20,699.00, 28,563.20 and 11,267.36 is: 15,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.00 : 28,563.20 = 11,267.36 : x
  2. Step 2: Convert to fraction form
    20,699.00/28,563.20 = 11,267.36/x
  3. Step 3: Cross multiply
    20,699.00x = 28,563.20 × 11,267.36
  4. Step 4: Simplify right side
    20,699.00x = 321,831,658.00
  5. Step 5: Solve for x
    x = 321,831,658.00/20,699.00
  6. Step 6: Final answer
    x = 15,548.18

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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.