Home / 37,122.80-51,230.16-20,355.68

Finding the Fourth Proportional to 37,122.80, 51,230.16 and 20,355.68

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Solution

The fourth proportional to 37,122.80, 51,230.16 and 20,355.68 is: 28,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,122.80 : 51,230.16 = 20,355.68 : x
  2. Step 2: Convert to fraction form
    37,122.80/51,230.16 = 20,355.68/x
  3. Step 3: Cross multiply
    37,122.80x = 51,230.16 × 20,355.68
  4. Step 4: Simplify right side
    37,122.80x = 1,042,824,743.31
  5. Step 5: Solve for x
    x = 1,042,824,743.31/37,122.80
  6. Step 6: Final answer
    x = 28,091.22

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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.