Home / 31,182.25-46,784.99-18,711.22

Finding the Fourth Proportional to 31,182.25, 46,784.99 and 18,711.22

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Solution

The fourth proportional to 31,182.25, 46,784.99 and 18,711.22 is: 28,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,182.25 : 46,784.99 = 18,711.22 : x
  2. Step 2: Convert to fraction form
    31,182.25/46,784.99 = 18,711.22/x
  3. Step 3: Cross multiply
    31,182.25x = 46,784.99 × 18,711.22
  4. Step 4: Simplify right side
    31,182.25x = 875,404,258.13
  5. Step 5: Solve for x
    x = 875,404,258.13/31,182.25
  6. Step 6: Final answer
    x = 28,073.80

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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.