Home / 39,400.46-54,370.73-21,494.39

Finding the Fourth Proportional to 39,400.46, 54,370.73 and 21,494.39

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Solution

The fourth proportional to 39,400.46, 54,370.73 and 21,494.39 is: 29,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400.46 : 54,370.73 = 21,494.39 : x
  2. Step 2: Convert to fraction form
    39,400.46/54,370.73 = 21,494.39/x
  3. Step 3: Cross multiply
    39,400.46x = 54,370.73 × 21,494.39
  4. Step 4: Simplify right side
    39,400.46x = 1,168,665,864.87
  5. Step 5: Solve for x
    x = 1,168,665,864.87/39,400.46
  6. Step 6: Final answer
    x = 29,661.23

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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.