Home / 31,864.62-43,976.73-18,435.72

Finding the Fourth Proportional to 31,864.62, 43,976.73 and 18,435.72

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Solution

The fourth proportional to 31,864.62, 43,976.73 and 18,435.72 is: 25,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.62 : 43,976.73 = 18,435.72 : x
  2. Step 2: Convert to fraction form
    31,864.62/43,976.73 = 18,435.72/x
  3. Step 3: Cross multiply
    31,864.62x = 43,976.73 × 18,435.72
  4. Step 4: Simplify right side
    31,864.62x = 810,742,680.80
  5. Step 5: Solve for x
    x = 810,742,680.80/31,864.62
  6. Step 6: Final answer
    x = 25,443.35

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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.