Home / 18,442.85-25,465.37-14,187.30

Finding the Fourth Proportional to 18,442.85, 25,465.37 and 14,187.30

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Solution

The fourth proportional to 18,442.85, 25,465.37 and 14,187.30 is: 19,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.85 : 25,465.37 = 14,187.30 : x
  2. Step 2: Convert to fraction form
    18,442.85/25,465.37 = 14,187.30/x
  3. Step 3: Cross multiply
    18,442.85x = 25,465.37 × 14,187.30
  4. Step 4: Simplify right side
    18,442.85x = 361,284,772.86
  5. Step 5: Solve for x
    x = 361,284,772.86/18,442.85
  6. Step 6: Final answer
    x = 19,589.43

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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.