Home / 20,529.68-28,330.44-11,577.02

Finding the Fourth Proportional to 20,529.68, 28,330.44 and 11,577.02

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Solution

The fourth proportional to 20,529.68, 28,330.44 and 11,577.02 is: 15,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.68 : 28,330.44 = 11,577.02 : x
  2. Step 2: Convert to fraction form
    20,529.68/28,330.44 = 11,577.02/x
  3. Step 3: Cross multiply
    20,529.68x = 28,330.44 × 11,577.02
  4. Step 4: Simplify right side
    20,529.68x = 327,982,070.49
  5. Step 5: Solve for x
    x = 327,982,070.49/20,529.68
  6. Step 6: Final answer
    x = 15,976.00

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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.