Home / 31,867.64-43,976.76-17,720.36

Finding the Fourth Proportional to 31,867.64, 43,976.76 and 17,720.36

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Solution

The fourth proportional to 31,867.64, 43,976.76 and 17,720.36 is: 24,453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,867.64 : 43,976.76 = 17,720.36 : x
  2. Step 2: Convert to fraction form
    31,867.64/43,976.76 = 17,720.36/x
  3. Step 3: Cross multiply
    31,867.64x = 43,976.76 × 17,720.36
  4. Step 4: Simplify right side
    31,867.64x = 779,284,018.83
  5. Step 5: Solve for x
    x = 779,284,018.83/31,867.64
  6. Step 6: Final answer
    x = 24,453.77

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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.