Home / 20,927.66-28,880.04-12,544.16

Finding the Fourth Proportional to 20,927.66, 28,880.04 and 12,544.16

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Solution

The fourth proportional to 20,927.66, 28,880.04 and 12,544.16 is: 17,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.66 : 28,880.04 = 12,544.16 : x
  2. Step 2: Convert to fraction form
    20,927.66/28,880.04 = 12,544.16/x
  3. Step 3: Cross multiply
    20,927.66x = 28,880.04 × 12,544.16
  4. Step 4: Simplify right side
    20,927.66x = 362,275,842.57
  5. Step 5: Solve for x
    x = 362,275,842.57/20,927.66
  6. Step 6: Final answer
    x = 17,310.86

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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.