Home / 39,399.08-54,370.86-21,494.46

Finding the Fourth Proportional to 39,399.08, 54,370.86 and 21,494.46

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Solution

The fourth proportional to 39,399.08, 54,370.86 and 21,494.46 is: 29,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,399.08 : 54,370.86 = 21,494.46 : x
  2. Step 2: Convert to fraction form
    39,399.08/54,370.86 = 21,494.46/x
  3. Step 3: Cross multiply
    39,399.08x = 54,370.86 × 21,494.46
  4. Step 4: Simplify right side
    39,399.08x = 1,168,672,194.83
  5. Step 5: Solve for x
    x = 1,168,672,194.83/39,399.08
  6. Step 6: Final answer
    x = 29,662.42

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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.