Home / 21,840.84-32,712.03-13,057.32

Finding the Fourth Proportional to 21,840.84, 32,712.03 and 13,057.32

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Solution

The fourth proportional to 21,840.84, 32,712.03 and 13,057.32 is: 19,556.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.84 : 32,712.03 = 13,057.32 : x
  2. Step 2: Convert to fraction form
    21,840.84/32,712.03 = 13,057.32/x
  3. Step 3: Cross multiply
    21,840.84x = 32,712.03 × 13,057.32
  4. Step 4: Simplify right side
    21,840.84x = 427,131,443.56
  5. Step 5: Solve for x
    x = 427,131,443.56/21,840.84
  6. Step 6: Final answer
    x = 19,556.55

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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.