Home / 37,921.72-57,103.15-28,130.44

Finding the Fourth Proportional to 37,921.72, 57,103.15 and 28,130.44

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Solution

The fourth proportional to 37,921.72, 57,103.15 and 28,130.44 is: 42,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,921.72 : 57,103.15 = 28,130.44 : x
  2. Step 2: Convert to fraction form
    37,921.72/57,103.15 = 28,130.44/x
  3. Step 3: Cross multiply
    37,921.72x = 57,103.15 × 28,130.44
  4. Step 4: Simplify right side
    37,921.72x = 1,606,336,734.89
  5. Step 5: Solve for x
    x = 1,606,336,734.89/37,921.72
  6. Step 6: Final answer
    x = 42,359.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.