Home / 31,701.52-43,735.62-20,369.32

Finding the Fourth Proportional to 31,701.52, 43,735.62 and 20,369.32

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Solution

The fourth proportional to 31,701.52, 43,735.62 and 20,369.32 is: 28,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,701.52 : 43,735.62 = 20,369.32 : x
  2. Step 2: Convert to fraction form
    31,701.52/43,735.62 = 20,369.32/x
  3. Step 3: Cross multiply
    31,701.52x = 43,735.62 × 20,369.32
  4. Step 4: Simplify right side
    31,701.52x = 890,864,839.18
  5. Step 5: Solve for x
    x = 890,864,839.18/31,701.52
  6. Step 6: Final answer
    x = 28,101.64

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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.