Home / 37,121.80-51,228.78-20,354.68

Finding the Fourth Proportional to 37,121.80, 51,228.78 and 20,354.68

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Solution

The fourth proportional to 37,121.80, 51,228.78 and 20,354.68 is: 28,089.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.80 : 51,228.78 = 20,354.68 : x
  2. Step 2: Convert to fraction form
    37,121.80/51,228.78 = 20,354.68/x
  3. Step 3: Cross multiply
    37,121.80x = 51,228.78 × 20,354.68
  4. Step 4: Simplify right side
    37,121.80x = 1,042,745,423.69
  5. Step 5: Solve for x
    x = 1,042,745,423.69/37,121.80
  6. Step 6: Final answer
    x = 28,089.84

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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.