Home / 40,143.60-55,388.16-23,153.04

Finding the Fourth Proportional to 40,143.60, 55,388.16 and 23,153.04

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Solution

The fourth proportional to 40,143.60, 55,388.16 and 23,153.04 is: 31,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.60 : 55,388.16 = 23,153.04 : x
  2. Step 2: Convert to fraction form
    40,143.60/55,388.16 = 23,153.04/x
  3. Step 3: Cross multiply
    40,143.60x = 55,388.16 × 23,153.04
  4. Step 4: Simplify right side
    40,143.60x = 1,282,404,284.01
  5. Step 5: Solve for x
    x = 1,282,404,284.01/40,143.60
  6. Step 6: Final answer
    x = 31,945.42

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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.