Home / 17,621.96-26,285.99-15,940.40

Finding the Fourth Proportional to 17,621.96, 26,285.99 and 15,940.40

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Solution

The fourth proportional to 17,621.96, 26,285.99 and 15,940.40 is: 23,777.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621.96 : 26,285.99 = 15,940.40 : x
  2. Step 2: Convert to fraction form
    17,621.96/26,285.99 = 15,940.40/x
  3. Step 3: Cross multiply
    17,621.96x = 26,285.99 × 15,940.40
  4. Step 4: Simplify right side
    17,621.96x = 419,008,983.86
  5. Step 5: Solve for x
    x = 419,008,983.86/17,621.96
  6. Step 6: Final answer
    x = 23,777.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.