Home / 31,855.28-43,958.40-17,707.64

Finding the Fourth Proportional to 31,855.28, 43,958.40 and 17,707.64

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Solution

The fourth proportional to 31,855.28, 43,958.40 and 17,707.64 is: 24,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.28 : 43,958.40 = 17,707.64 : x
  2. Step 2: Convert to fraction form
    31,855.28/43,958.40 = 17,707.64/x
  3. Step 3: Cross multiply
    31,855.28x = 43,958.40 × 17,707.64
  4. Step 4: Simplify right side
    31,855.28x = 778,399,522.18
  5. Step 5: Solve for x
    x = 778,399,522.18/31,855.28
  6. Step 6: Final answer
    x = 24,435.49

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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.