Home / 20,529.09-28,327.98-11,577.96

Finding the Fourth Proportional to 20,529.09, 28,327.98 and 11,577.96

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Solution

The fourth proportional to 20,529.09, 28,327.98 and 11,577.96 is: 15,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.09 : 28,327.98 = 11,577.96 : x
  2. Step 2: Convert to fraction form
    20,529.09/28,327.98 = 11,577.96/x
  3. Step 3: Cross multiply
    20,529.09x = 28,327.98 × 11,577.96
  4. Step 4: Simplify right side
    20,529.09x = 327,980,219.32
  5. Step 5: Solve for x
    x = 327,980,219.32/20,529.09
  6. Step 6: Final answer
    x = 15,976.36

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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.