Home / 40,660.76-60,976.06-13,999.30

Finding the Fourth Proportional to 40,660.76, 60,976.06 and 13,999.30

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Solution

The fourth proportional to 40,660.76, 60,976.06 and 13,999.30 is: 20,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,660.76 : 60,976.06 = 13,999.30 : x
  2. Step 2: Convert to fraction form
    40,660.76/60,976.06 = 13,999.30/x
  3. Step 3: Cross multiply
    40,660.76x = 60,976.06 × 13,999.30
  4. Step 4: Simplify right side
    40,660.76x = 853,622,156.76
  5. Step 5: Solve for x
    x = 853,622,156.76/40,660.76
  6. Step 6: Final answer
    x = 20,993.76

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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.