Home / 39,756.12-54,863.48-21,850.98

Finding the Fourth Proportional to 39,756.12, 54,863.48 and 21,850.98

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Solution

The fourth proportional to 39,756.12, 54,863.48 and 21,850.98 is: 30,154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.12 : 54,863.48 = 21,850.98 : x
  2. Step 2: Convert to fraction form
    39,756.12/54,863.48 = 21,850.98/x
  3. Step 3: Cross multiply
    39,756.12x = 54,863.48 × 21,850.98
  4. Step 4: Simplify right side
    39,756.12x = 1,198,820,804.21
  5. Step 5: Solve for x
    x = 1,198,820,804.21/39,756.12
  6. Step 6: Final answer
    x = 30,154.37

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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.