Home / 21,577.05-32,322.48-17,142.20

Finding the Fourth Proportional to 21,577.05, 32,322.48 and 17,142.20

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Solution

The fourth proportional to 21,577.05, 32,322.48 and 17,142.20 is: 25,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.05 : 32,322.48 = 17,142.20 : x
  2. Step 2: Convert to fraction form
    21,577.05/32,322.48 = 17,142.20/x
  3. Step 3: Cross multiply
    21,577.05x = 32,322.48 × 17,142.20
  4. Step 4: Simplify right side
    21,577.05x = 554,078,311.97
  5. Step 5: Solve for x
    x = 554,078,311.97/21,577.05
  6. Step 6: Final answer
    x = 25,679.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.