Home / 31,795.98-43,869.45-20,472.03

Finding the Fourth Proportional to 31,795.98, 43,869.45 and 20,472.03

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Solution

The fourth proportional to 31,795.98, 43,869.45 and 20,472.03 is: 28,245.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,795.98 : 43,869.45 = 20,472.03 : x
  2. Step 2: Convert to fraction form
    31,795.98/43,869.45 = 20,472.03/x
  3. Step 3: Cross multiply
    31,795.98x = 43,869.45 × 20,472.03
  4. Step 4: Simplify right side
    31,795.98x = 898,096,696.48
  5. Step 5: Solve for x
    x = 898,096,696.48/31,795.98
  6. Step 6: Final answer
    x = 28,245.61

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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.