Home / 20,729.05-28,577.10-17,529.49

Finding the Fourth Proportional to 20,729.05, 28,577.10 and 17,529.49

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Solution

The fourth proportional to 20,729.05, 28,577.10 and 17,529.49 is: 24,166.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.05 : 28,577.10 = 17,529.49 : x
  2. Step 2: Convert to fraction form
    20,729.05/28,577.10 = 17,529.49/x
  3. Step 3: Cross multiply
    20,729.05x = 28,577.10 × 17,529.49
  4. Step 4: Simplify right side
    20,729.05x = 500,942,090.14
  5. Step 5: Solve for x
    x = 500,942,090.14/20,729.05
  6. Step 6: Final answer
    x = 24,166.19

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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.