Home / 37,849.45-56,720.64-20,989.92

Finding the Fourth Proportional to 37,849.45, 56,720.64 and 20,989.92

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Solution

The fourth proportional to 37,849.45, 56,720.64 and 20,989.92 is: 31,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,849.45 : 56,720.64 = 20,989.92 : x
  2. Step 2: Convert to fraction form
    37,849.45/56,720.64 = 20,989.92/x
  3. Step 3: Cross multiply
    37,849.45x = 56,720.64 × 20,989.92
  4. Step 4: Simplify right side
    37,849.45x = 1,190,561,878.08
  5. Step 5: Solve for x
    x = 1,190,561,878.08/37,849.45
  6. Step 6: Final answer
    x = 31,455.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.