Home / 37,636.72-51,943.92-21,720.88

Finding the Fourth Proportional to 37,636.72, 51,943.92 and 21,720.88

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Solution

The fourth proportional to 37,636.72, 51,943.92 and 21,720.88 is: 29,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,636.72 : 51,943.92 = 21,720.88 : x
  2. Step 2: Convert to fraction form
    37,636.72/51,943.92 = 21,720.88/x
  3. Step 3: Cross multiply
    37,636.72x = 51,943.92 × 21,720.88
  4. Step 4: Simplify right side
    37,636.72x = 1,128,267,653.05
  5. Step 5: Solve for x
    x = 1,128,267,653.05/37,636.72
  6. Step 6: Final answer
    x = 29,977.84

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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.