Home / 28,754.04-39,680.64-16,179.60

Finding the Fourth Proportional to 28,754.04, 39,680.64 and 16,179.60

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Solution

The fourth proportional to 28,754.04, 39,680.64 and 16,179.60 is: 22,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.04 : 39,680.64 = 16,179.60 : x
  2. Step 2: Convert to fraction form
    28,754.04/39,680.64 = 16,179.60/x
  3. Step 3: Cross multiply
    28,754.04x = 39,680.64 × 16,179.60
  4. Step 4: Simplify right side
    28,754.04x = 642,016,882.94
  5. Step 5: Solve for x
    x = 642,016,882.94/28,754.04
  6. Step 6: Final answer
    x = 22,327.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.