Home / 37,775.25-52,131-20,778.63

Finding the Fourth Proportional to 37,775.25, 52,131 and 20,778.63

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Solution

The fourth proportional to 37,775.25, 52,131 and 20,778.63 is: 28,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,775.25 : 52,131 = 20,778.63 : x
  2. Step 2: Convert to fraction form
    37,775.25/52,131 = 20,778.63/x
  3. Step 3: Cross multiply
    37,775.25x = 52,131 × 20,778.63
  4. Step 4: Simplify right side
    37,775.25x = 1,083,210,760.53
  5. Step 5: Solve for x
    x = 1,083,210,760.53/37,775.25
  6. Step 6: Final answer
    x = 28,675.14

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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.