Home / 19,941.99-27,520.46-10,989.60

Finding the Fourth Proportional to 19,941.99, 27,520.46 and 10,989.60

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Solution

The fourth proportional to 19,941.99, 27,520.46 and 10,989.60 is: 15,165.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.99 : 27,520.46 = 10,989.60 : x
  2. Step 2: Convert to fraction form
    19,941.99/27,520.46 = 10,989.60/x
  3. Step 3: Cross multiply
    19,941.99x = 27,520.46 × 10,989.60
  4. Step 4: Simplify right side
    19,941.99x = 302,438,847.22
  5. Step 5: Solve for x
    x = 302,438,847.22/19,941.99
  6. Step 6: Final answer
    x = 15,165.93

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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.