Home / 30,268.64-45,403.00-13,625.57

Finding the Fourth Proportional to 30,268.64, 45,403.00 and 13,625.57

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Solution

The fourth proportional to 30,268.64, 45,403.00 and 13,625.57 is: 20,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,268.64 : 45,403.00 = 13,625.57 : x
  2. Step 2: Convert to fraction form
    30,268.64/45,403.00 = 13,625.57/x
  3. Step 3: Cross multiply
    30,268.64x = 45,403.00 × 13,625.57
  4. Step 4: Simplify right side
    30,268.64x = 618,641,834.15
  5. Step 5: Solve for x
    x = 618,641,834.15/30,268.64
  6. Step 6: Final answer
    x = 20,438.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.