Home / 55,571.36-83,357.04-18,661.28

Finding the Fourth Proportional to 55,571.36, 83,357.04 and 18,661.28

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Solution

The fourth proportional to 55,571.36, 83,357.04 and 18,661.28 is: 27,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,571.36 : 83,357.04 = 18,661.28 : x
  2. Step 2: Convert to fraction form
    55,571.36/83,357.04 = 18,661.28/x
  3. Step 3: Cross multiply
    55,571.36x = 83,357.04 × 18,661.28
  4. Step 4: Simplify right side
    55,571.36x = 1,555,549,063.41
  5. Step 5: Solve for x
    x = 1,555,549,063.41/55,571.36
  6. Step 6: Final answer
    x = 27,991.92

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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.