Home / 19,922.20-27,492.64-10,969.68

Finding the Fourth Proportional to 19,922.20, 27,492.64 and 10,969.68

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Solution

The fourth proportional to 19,922.20, 27,492.64 and 10,969.68 is: 15,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.20 : 27,492.64 = 10,969.68 : x
  2. Step 2: Convert to fraction form
    19,922.20/27,492.64 = 10,969.68/x
  3. Step 3: Cross multiply
    19,922.20x = 27,492.64 × 10,969.68
  4. Step 4: Simplify right side
    19,922.20x = 301,585,589.01
  5. Step 5: Solve for x
    x = 301,585,589.01/19,922.20
  6. Step 6: Final answer
    x = 15,138.16

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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.