Home / 28,785.43-43,115.64-13,963.20

Finding the Fourth Proportional to 28,785.43, 43,115.64 and 13,963.20

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Solution

The fourth proportional to 28,785.43, 43,115.64 and 13,963.20 is: 20,914.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.43 : 43,115.64 = 13,963.20 : x
  2. Step 2: Convert to fraction form
    28,785.43/43,115.64 = 13,963.20/x
  3. Step 3: Cross multiply
    28,785.43x = 43,115.64 × 13,963.20
  4. Step 4: Simplify right side
    28,785.43x = 602,032,304.45
  5. Step 5: Solve for x
    x = 602,032,304.45/28,785.43
  6. Step 6: Final answer
    x = 20,914.48

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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.