Home / 40,918.40-61,396.06-18,434.68

Finding the Fourth Proportional to 40,918.40, 61,396.06 and 18,434.68

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Solution

The fourth proportional to 40,918.40, 61,396.06 and 18,434.68 is: 27,660.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,918.40 : 61,396.06 = 18,434.68 : x
  2. Step 2: Convert to fraction form
    40,918.40/61,396.06 = 18,434.68/x
  3. Step 3: Cross multiply
    40,918.40x = 61,396.06 × 18,434.68
  4. Step 4: Simplify right side
    40,918.40x = 1,131,816,719.36
  5. Step 5: Solve for x
    x = 1,131,816,719.36/40,918.40
  6. Step 6: Final answer
    x = 27,660.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.