Home / 39,555.36-54,586.44-21,651.12

Finding the Fourth Proportional to 39,555.36, 54,586.44 and 21,651.12

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Solution

The fourth proportional to 39,555.36, 54,586.44 and 21,651.12 is: 29,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,555.36 : 54,586.44 = 21,651.12 : x
  2. Step 2: Convert to fraction form
    39,555.36/54,586.44 = 21,651.12/x
  3. Step 3: Cross multiply
    39,555.36x = 54,586.44 × 21,651.12
  4. Step 4: Simplify right side
    39,555.36x = 1,181,857,562.81
  5. Step 5: Solve for x
    x = 1,181,857,562.81/39,555.36
  6. Step 6: Final answer
    x = 29,878.57

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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.