Home / 21,577.78-32,325.18-13,233.45

Finding the Fourth Proportional to 21,577.78, 32,325.18 and 13,233.45

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Solution

The fourth proportional to 21,577.78, 32,325.18 and 13,233.45 is: 19,824.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.78 : 32,325.18 = 13,233.45 : x
  2. Step 2: Convert to fraction form
    21,577.78/32,325.18 = 13,233.45/x
  3. Step 3: Cross multiply
    21,577.78x = 32,325.18 × 13,233.45
  4. Step 4: Simplify right side
    21,577.78x = 427,773,653.27
  5. Step 5: Solve for x
    x = 427,773,653.27/21,577.78
  6. Step 6: Final answer
    x = 19,824.73

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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.