Home / 55,739.68-83,615.88-20,217.76

Finding the Fourth Proportional to 55,739.68, 83,615.88 and 20,217.76

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Solution

The fourth proportional to 55,739.68, 83,615.88 and 20,217.76 is: 30,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.68 : 83,615.88 = 20,217.76 : x
  2. Step 2: Convert to fraction form
    55,739.68/83,615.88 = 20,217.76/x
  3. Step 3: Cross multiply
    55,739.68x = 83,615.88 × 20,217.76
  4. Step 4: Simplify right side
    55,739.68x = 1,690,525,794.03
  5. Step 5: Solve for x
    x = 1,690,525,794.03/55,739.68
  6. Step 6: Final answer
    x = 30,328.95

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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.