Home / 21,839.51-32,771.96-9,188.34

Finding the Fourth Proportional to 21,839.51, 32,771.96 and 9,188.34

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Solution

The fourth proportional to 21,839.51, 32,771.96 and 9,188.34 is: 13,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,839.51 : 32,771.96 = 9,188.34 : x
  2. Step 2: Convert to fraction form
    21,839.51/32,771.96 = 9,188.34/x
  3. Step 3: Cross multiply
    21,839.51x = 32,771.96 × 9,188.34
  4. Step 4: Simplify right side
    21,839.51x = 301,119,910.95
  5. Step 5: Solve for x
    x = 301,119,910.95/21,839.51
  6. Step 6: Final answer
    x = 13,787.85

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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.