Home / 37,128.63-51,234.35-21,209.97

Finding the Fourth Proportional to 37,128.63, 51,234.35 and 21,209.97

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Solution

The fourth proportional to 37,128.63, 51,234.35 and 21,209.97 is: 29,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,128.63 : 51,234.35 = 21,209.97 : x
  2. Step 2: Convert to fraction form
    37,128.63/51,234.35 = 21,209.97/x
  3. Step 3: Cross multiply
    37,128.63x = 51,234.35 × 21,209.97
  4. Step 4: Simplify right side
    37,128.63x = 1,086,678,920.42
  5. Step 5: Solve for x
    x = 1,086,678,920.42/37,128.63
  6. Step 6: Final answer
    x = 29,267.95

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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.