Home / 37,131.45-51,223.28-21,211.71

Finding the Fourth Proportional to 37,131.45, 51,223.28 and 21,211.71

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Solution

The fourth proportional to 37,131.45, 51,223.28 and 21,211.71 is: 29,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,131.45 : 51,223.28 = 21,211.71 : x
  2. Step 2: Convert to fraction form
    37,131.45/51,223.28 = 21,211.71/x
  3. Step 3: Cross multiply
    37,131.45x = 51,223.28 × 21,211.71
  4. Step 4: Simplify right side
    37,131.45x = 1,086,533,360.61
  5. Step 5: Solve for x
    x = 1,086,533,360.61/37,131.45
  6. Step 6: Final answer
    x = 29,261.81

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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.