Home / 17,811.92-26,697.72-13,415.60

Finding the Fourth Proportional to 17,811.92, 26,697.72 and 13,415.60

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Solution

The fourth proportional to 17,811.92, 26,697.72 and 13,415.60 is: 20,108.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.92 : 26,697.72 = 13,415.60 : x
  2. Step 2: Convert to fraction form
    17,811.92/26,697.72 = 13,415.60/x
  3. Step 3: Cross multiply
    17,811.92x = 26,697.72 × 13,415.60
  4. Step 4: Simplify right side
    17,811.92x = 358,165,932.43
  5. Step 5: Solve for x
    x = 358,165,932.43/17,811.92
  6. Step 6: Final answer
    x = 20,108.22

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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.