Home / 37,031.87-51,102.95-21,115.37

Finding the Fourth Proportional to 37,031.87, 51,102.95 and 21,115.37

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Solution

The fourth proportional to 37,031.87, 51,102.95 and 21,115.37 is: 29,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,031.87 : 51,102.95 = 21,115.37 : x
  2. Step 2: Convert to fraction form
    37,031.87/51,102.95 = 21,115.37/x
  3. Step 3: Cross multiply
    37,031.87x = 51,102.95 × 21,115.37
  4. Step 4: Simplify right side
    37,031.87x = 1,079,057,336.25
  5. Step 5: Solve for x
    x = 1,079,057,336.25/37,031.87
  6. Step 6: Final answer
    x = 29,138.62

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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.