Home / 37,086.39-51,178.95-21,170.80

Finding the Fourth Proportional to 37,086.39, 51,178.95 and 21,170.80

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Solution

The fourth proportional to 37,086.39, 51,178.95 and 21,170.80 is: 29,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,086.39 : 51,178.95 = 21,170.80 : x
  2. Step 2: Convert to fraction form
    37,086.39/51,178.95 = 21,170.80/x
  3. Step 3: Cross multiply
    37,086.39x = 51,178.95 × 21,170.80
  4. Step 4: Simplify right side
    37,086.39x = 1,083,499,378.63
  5. Step 5: Solve for x
    x = 1,083,499,378.63/37,086.39
  6. Step 6: Final answer
    x = 29,215.55

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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.