Home / 19,989.50-27,585.57-11,037.06

Finding the Fourth Proportional to 19,989.50, 27,585.57 and 11,037.06

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Solution

The fourth proportional to 19,989.50, 27,585.57 and 11,037.06 is: 15,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.50 : 27,585.57 = 11,037.06 : x
  2. Step 2: Convert to fraction form
    19,989.50/27,585.57 = 11,037.06/x
  3. Step 3: Cross multiply
    19,989.50x = 27,585.57 × 11,037.06
  4. Step 4: Simplify right side
    19,989.50x = 304,463,591.22
  5. Step 5: Solve for x
    x = 304,463,591.22/19,989.50
  6. Step 6: Final answer
    x = 15,231.18

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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.