Home / 37,031.16-51,101.73-21,120.73

Finding the Fourth Proportional to 37,031.16, 51,101.73 and 21,120.73

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Solution

The fourth proportional to 37,031.16, 51,101.73 and 21,120.73 is: 29,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,031.16 : 51,101.73 = 21,120.73 : x
  2. Step 2: Convert to fraction form
    37,031.16/51,101.73 = 21,120.73/x
  3. Step 3: Cross multiply
    37,031.16x = 51,101.73 × 21,120.73
  4. Step 4: Simplify right side
    37,031.16x = 1,079,305,841.86
  5. Step 5: Solve for x
    x = 1,079,305,841.86/37,031.16
  6. Step 6: Final answer
    x = 29,145.88

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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.