Home / 39,863.52-54,991.44-30,415.68

Finding the Fourth Proportional to 39,863.52, 54,991.44 and 30,415.68

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Solution

The fourth proportional to 39,863.52, 54,991.44 and 30,415.68 is: 41,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,863.52 : 54,991.44 = 30,415.68 : x
  2. Step 2: Convert to fraction form
    39,863.52/54,991.44 = 30,415.68/x
  3. Step 3: Cross multiply
    39,863.52x = 54,991.44 × 30,415.68
  4. Step 4: Simplify right side
    39,863.52x = 1,672,602,041.78
  5. Step 5: Solve for x
    x = 1,672,602,041.78/39,863.52
  6. Step 6: Final answer
    x = 41,958.21

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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.