Home / 20,684.46-28,542.06-11,731.53

Finding the Fourth Proportional to 20,684.46, 28,542.06 and 11,731.53

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Solution

The fourth proportional to 20,684.46, 28,542.06 and 11,731.53 is: 16,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.46 : 28,542.06 = 11,731.53 : x
  2. Step 2: Convert to fraction form
    20,684.46/28,542.06 = 11,731.53/x
  3. Step 3: Cross multiply
    20,684.46x = 28,542.06 × 11,731.53
  4. Step 4: Simplify right side
    20,684.46x = 334,842,033.15
  5. Step 5: Solve for x
    x = 334,842,033.15/20,684.46
  6. Step 6: Final answer
    x = 16,188.10

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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.