Home / 40,158.09-55,418.58-22,253.31

Finding the Fourth Proportional to 40,158.09, 55,418.58 and 22,253.31

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Solution

The fourth proportional to 40,158.09, 55,418.58 and 22,253.31 is: 30,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,158.09 : 55,418.58 = 22,253.31 : x
  2. Step 2: Convert to fraction form
    40,158.09/55,418.58 = 22,253.31/x
  3. Step 3: Cross multiply
    40,158.09x = 55,418.58 × 22,253.31
  4. Step 4: Simplify right side
    40,158.09x = 1,233,246,840.50
  5. Step 5: Solve for x
    x = 1,233,246,840.50/40,158.09
  6. Step 6: Final answer
    x = 30,709.80

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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.