Home / 40,899.79-56,438.64-22,991.30

Finding the Fourth Proportional to 40,899.79, 56,438.64 and 22,991.30

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Solution

The fourth proportional to 40,899.79, 56,438.64 and 22,991.30 is: 31,726.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,899.79 : 56,438.64 = 22,991.30 : x
  2. Step 2: Convert to fraction form
    40,899.79/56,438.64 = 22,991.30/x
  3. Step 3: Cross multiply
    40,899.79x = 56,438.64 × 22,991.30
  4. Step 4: Simplify right side
    40,899.79x = 1,297,597,703.83
  5. Step 5: Solve for x
    x = 1,297,597,703.83/40,899.79
  6. Step 6: Final answer
    x = 31,726.27

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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.