Home / 40,701.81-61,003.50-20,969.60

Finding the Fourth Proportional to 40,701.81, 61,003.50 and 20,969.60

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Solution

The fourth proportional to 40,701.81, 61,003.50 and 20,969.60 is: 31,429.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,701.81 : 61,003.50 = 20,969.60 : x
  2. Step 2: Convert to fraction form
    40,701.81/61,003.50 = 20,969.60/x
  3. Step 3: Cross multiply
    40,701.81x = 61,003.50 × 20,969.60
  4. Step 4: Simplify right side
    40,701.81x = 1,279,218,993.60
  5. Step 5: Solve for x
    x = 1,279,218,993.60/40,701.81
  6. Step 6: Final answer
    x = 31,429.04

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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.