Home / 40,176.80-55,443.03-23,181.08

Finding the Fourth Proportional to 40,176.80, 55,443.03 and 23,181.08

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Solution

The fourth proportional to 40,176.80, 55,443.03 and 23,181.08 is: 31,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,176.80 : 55,443.03 = 23,181.08 : x
  2. Step 2: Convert to fraction form
    40,176.80/55,443.03 = 23,181.08/x
  3. Step 3: Cross multiply
    40,176.80x = 55,443.03 × 23,181.08
  4. Step 4: Simplify right side
    40,176.80x = 1,285,229,313.87
  5. Step 5: Solve for x
    x = 1,285,229,313.87/40,176.80
  6. Step 6: Final answer
    x = 31,989.34

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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.