Home / 21,784.86-32,680.70-9,304.95

Finding the Fourth Proportional to 21,784.86, 32,680.70 and 9,304.95

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Solution

The fourth proportional to 21,784.86, 32,680.70 and 9,304.95 is: 13,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,784.86 : 32,680.70 = 9,304.95 : x
  2. Step 2: Convert to fraction form
    21,784.86/32,680.70 = 9,304.95/x
  3. Step 3: Cross multiply
    21,784.86x = 32,680.70 × 9,304.95
  4. Step 4: Simplify right side
    21,784.86x = 304,092,232.94
  5. Step 5: Solve for x
    x = 304,092,232.94/21,784.86
  6. Step 6: Final answer
    x = 13,958.88

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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.