Home / 19,941.10-27,518.34-10,989.43

Finding the Fourth Proportional to 19,941.10, 27,518.34 and 10,989.43

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Solution

The fourth proportional to 19,941.10, 27,518.34 and 10,989.43 is: 15,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.10 : 27,518.34 = 10,989.43 : x
  2. Step 2: Convert to fraction form
    19,941.10/27,518.34 = 10,989.43/x
  3. Step 3: Cross multiply
    19,941.10x = 27,518.34 × 10,989.43
  4. Step 4: Simplify right side
    19,941.10x = 302,410,871.15
  5. Step 5: Solve for x
    x = 302,410,871.15/19,941.10
  6. Step 6: Final answer
    x = 15,165.21

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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.