Home / 40,142.68-55,395.78-23,146.60

Finding the Fourth Proportional to 40,142.68, 55,395.78 and 23,146.60

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Solution

The fourth proportional to 40,142.68, 55,395.78 and 23,146.60 is: 31,941.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.68 : 55,395.78 = 23,146.60 : x
  2. Step 2: Convert to fraction form
    40,142.68/55,395.78 = 23,146.60/x
  3. Step 3: Cross multiply
    40,142.68x = 55,395.78 × 23,146.60
  4. Step 4: Simplify right side
    40,142.68x = 1,282,223,961.35
  5. Step 5: Solve for x
    x = 1,282,223,961.35/40,142.68
  6. Step 6: Final answer
    x = 31,941.66

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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.