Home / 17,670.30-26,505.45-16,911.90

Finding the Fourth Proportional to 17,670.30, 26,505.45 and 16,911.90

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Solution

The fourth proportional to 17,670.30, 26,505.45 and 16,911.90 is: 25,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,670.30 : 26,505.45 = 16,911.90 : x
  2. Step 2: Convert to fraction form
    17,670.30/26,505.45 = 16,911.90/x
  3. Step 3: Cross multiply
    17,670.30x = 26,505.45 × 16,911.90
  4. Step 4: Simplify right side
    17,670.30x = 448,257,519.86
  5. Step 5: Solve for x
    x = 448,257,519.86/17,670.30
  6. Step 6: Final answer
    x = 25,367.85

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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.