Home / 55,218.04-82,836.80-20,206.60

Finding the Fourth Proportional to 55,218.04, 82,836.80 and 20,206.60

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Solution

The fourth proportional to 55,218.04, 82,836.80 and 20,206.60 is: 30,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218.04 : 82,836.80 = 20,206.60 : x
  2. Step 2: Convert to fraction form
    55,218.04/82,836.80 = 20,206.60/x
  3. Step 3: Cross multiply
    55,218.04x = 82,836.80 × 20,206.60
  4. Step 4: Simplify right side
    55,218.04x = 1,673,850,082.88
  5. Step 5: Solve for x
    x = 1,673,850,082.88/55,218.04
  6. Step 6: Final answer
    x = 30,313.46

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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.