Home / 31,885.96-43,990.74-19,944.76

Finding the Fourth Proportional to 31,885.96, 43,990.74 and 19,944.76

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Solution

The fourth proportional to 31,885.96, 43,990.74 and 19,944.76 is: 27,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,885.96 : 43,990.74 = 19,944.76 : x
  2. Step 2: Convert to fraction form
    31,885.96/43,990.74 = 19,944.76/x
  3. Step 3: Cross multiply
    31,885.96x = 43,990.74 × 19,944.76
  4. Step 4: Simplify right side
    31,885.96x = 877,384,751.52
  5. Step 5: Solve for x
    x = 877,384,751.52/31,885.96
  6. Step 6: Final answer
    x = 27,516.33

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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.