Home / 31,999.88-48,000.06-20,976.36

Finding the Fourth Proportional to 31,999.88, 48,000.06 and 20,976.36

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Solution

The fourth proportional to 31,999.88, 48,000.06 and 20,976.36 is: 31,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,999.88 : 48,000.06 = 20,976.36 : x
  2. Step 2: Convert to fraction form
    31,999.88/48,000.06 = 20,976.36/x
  3. Step 3: Cross multiply
    31,999.88x = 48,000.06 × 20,976.36
  4. Step 4: Simplify right side
    31,999.88x = 1,006,866,538.58
  5. Step 5: Solve for x
    x = 1,006,866,538.58/31,999.88
  6. Step 6: Final answer
    x = 31,464.70

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1.5x scale

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.