Home / 31,511.43-43,456.57-23,000.06

Finding the Fourth Proportional to 31,511.43, 43,456.57 and 23,000.06

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Solution

The fourth proportional to 31,511.43, 43,456.57 and 23,000.06 is: 31,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.43 : 43,456.57 = 23,000.06 : x
  2. Step 2: Convert to fraction form
    31,511.43/43,456.57 = 23,000.06/x
  3. Step 3: Cross multiply
    31,511.43x = 43,456.57 × 23,000.06
  4. Step 4: Simplify right side
    31,511.43x = 999,503,768.54
  5. Step 5: Solve for x
    x = 999,503,768.54/31,511.43
  6. Step 6: Final answer
    x = 31,718.77

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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.