Home / 20,127.04-27,769.56-12,163.48

Finding the Fourth Proportional to 20,127.04, 27,769.56 and 12,163.48

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Solution

The fourth proportional to 20,127.04, 27,769.56 and 12,163.48 is: 16,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.04 : 27,769.56 = 12,163.48 : x
  2. Step 2: Convert to fraction form
    20,127.04/27,769.56 = 12,163.48/x
  3. Step 3: Cross multiply
    20,127.04x = 27,769.56 × 12,163.48
  4. Step 4: Simplify right side
    20,127.04x = 337,774,487.67
  5. Step 5: Solve for x
    x = 337,774,487.67/20,127.04
  6. Step 6: Final answer
    x = 16,782.12

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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.