Home / 20,107.77-30,171.71-9,022.38

Finding the Fourth Proportional to 20,107.77, 30,171.71 and 9,022.38

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Solution

The fourth proportional to 20,107.77, 30,171.71 and 9,022.38 is: 13,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.77 : 30,171.71 = 9,022.38 : x
  2. Step 2: Convert to fraction form
    20,107.77/30,171.71 = 9,022.38/x
  3. Step 3: Cross multiply
    20,107.77x = 30,171.71 × 9,022.38
  4. Step 4: Simplify right side
    20,107.77x = 272,220,632.87
  5. Step 5: Solve for x
    x = 272,220,632.87/20,107.77
  6. Step 6: Final answer
    x = 13,538.08

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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.