Home / 40,182.80-55,440.76-23,185.68

Finding the Fourth Proportional to 40,182.80, 55,440.76 and 23,185.68

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Solution

The fourth proportional to 40,182.80, 55,440.76 and 23,185.68 is: 31,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,182.80 : 55,440.76 = 23,185.68 : x
  2. Step 2: Convert to fraction form
    40,182.80/55,440.76 = 23,185.68/x
  3. Step 3: Cross multiply
    40,182.80x = 55,440.76 × 23,185.68
  4. Step 4: Simplify right side
    40,182.80x = 1,285,431,720.32
  5. Step 5: Solve for x
    x = 1,285,431,720.32/40,182.80
  6. Step 6: Final answer
    x = 31,989.60

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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.