Home / 30,704.80-42,324.96-25,685.68

Finding the Fourth Proportional to 30,704.80, 42,324.96 and 25,685.68

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Solution

The fourth proportional to 30,704.80, 42,324.96 and 25,685.68 is: 35,406.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,704.80 : 42,324.96 = 25,685.68 : x
  2. Step 2: Convert to fraction form
    30,704.80/42,324.96 = 25,685.68/x
  3. Step 3: Cross multiply
    30,704.80x = 42,324.96 × 25,685.68
  4. Step 4: Simplify right side
    30,704.80x = 1,087,145,378.57
  5. Step 5: Solve for x
    x = 1,087,145,378.57/30,704.80
  6. Step 6: Final answer
    x = 35,406.37

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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.