Home / 27,107.80-37,421.46-20,395.94

Finding the Fourth Proportional to 27,107.80, 37,421.46 and 20,395.94

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Solution

The fourth proportional to 27,107.80, 37,421.46 and 20,395.94 is: 28,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.80 : 37,421.46 = 20,395.94 : x
  2. Step 2: Convert to fraction form
    27,107.80/37,421.46 = 20,395.94/x
  3. Step 3: Cross multiply
    27,107.80x = 37,421.46 × 20,395.94
  4. Step 4: Simplify right side
    27,107.80x = 763,245,665.77
  5. Step 5: Solve for x
    x = 763,245,665.77/27,107.80
  6. Step 6: Final answer
    x = 28,155.95

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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.