Home / 40,141.68-55,394.40-23,145.60

Finding the Fourth Proportional to 40,141.68, 55,394.40 and 23,145.60

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Solution

The fourth proportional to 40,141.68, 55,394.40 and 23,145.60 is: 31,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,141.68 : 55,394.40 = 23,145.60 : x
  2. Step 2: Convert to fraction form
    40,141.68/55,394.40 = 23,145.60/x
  3. Step 3: Cross multiply
    40,141.68x = 55,394.40 × 23,145.60
  4. Step 4: Simplify right side
    40,141.68x = 1,282,136,624.64
  5. Step 5: Solve for x
    x = 1,282,136,624.64/40,141.68
  6. Step 6: Final answer
    x = 31,940.28

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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.