Home / 40,899.20-56,436.80-22,991.36

Finding the Fourth Proportional to 40,899.20, 56,436.80 and 22,991.36

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Solution

The fourth proportional to 40,899.20, 56,436.80 and 22,991.36 is: 31,725.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,899.20 : 56,436.80 = 22,991.36 : x
  2. Step 2: Convert to fraction form
    40,899.20/56,436.80 = 22,991.36/x
  3. Step 3: Cross multiply
    40,899.20x = 56,436.80 × 22,991.36
  4. Step 4: Simplify right side
    40,899.20x = 1,297,558,786.05
  5. Step 5: Solve for x
    x = 1,297,558,786.05/40,899.20
  6. Step 6: Final answer
    x = 31,725.77

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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.