Home / 37,271.61-51,431.76-21,138.84

Finding the Fourth Proportional to 37,271.61, 51,431.76 and 21,138.84

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Solution

The fourth proportional to 37,271.61, 51,431.76 and 21,138.84 is: 29,169.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,271.61 : 51,431.76 = 21,138.84 : x
  2. Step 2: Convert to fraction form
    37,271.61/51,431.76 = 21,138.84/x
  3. Step 3: Cross multiply
    37,271.61x = 51,431.76 × 21,138.84
  4. Step 4: Simplify right side
    37,271.61x = 1,087,207,745.56
  5. Step 5: Solve for x
    x = 1,087,207,745.56/37,271.61
  6. Step 6: Final answer
    x = 29,169.86

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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.